85553006780 has 24 divisors (see below), whose sum is σ = 183483897408. Its totient is φ = 33493091648.

The previous prime is 85553006779. The next prime is 85553006837. The reversal of 85553006780 is 8760035558.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45505979 + ... + 45507858.

It is an arithmetic number, because the mean of its divisors is an integer number (7645162392).

Almost surely, 2^85553006780 is an apocalyptic number.

It is an amenable number.

85553006780 is an abundant number, since it is smaller than the sum of its proper divisors (97930890628).

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

85553006780 is a wasteful number, since it uses less digits than its factorization.

85553006780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91013893 (or 91013891 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 85553006780 in words is "eighty-five billion, five hundred fifty-three million, six thousand, seven hundred eighty".