20377656000 has 1120 divisors, whose sum is σ = 84575050560. Its totient is φ = 4810752000.

The previous prime is 20377655993. The next prime is 20377656017. The reversal of 20377656000 is 65677302.

It is a happy number.

20377656000 is a `hidden beast` number, since 20 + 3 + 7 + 76 + 560 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 345383971 + ... + 345384029.

It is an arithmetic number, because the mean of its divisors is an integer number (75513438).

Almost surely, 2^20377656000 is an apocalyptic number.

20377656000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20377656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42287525280).

20377656000 is an abundant number, since it is smaller than the sum of its proper divisors (64197394560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20377656000 is a wasteful number, since it uses less digits than its factorization.

20377656000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The spelling of 20377656000 in words is "twenty billion, three hundred seventy-seven million, six hundred fifty-six thousand".