2175620350640 has 40 divisors (see below), whose sum is σ = 5518164346128. Its totient is φ = 791134672640.

The previous prime is 2175620350637. The next prime is 2175620350643. The reversal of 2175620350640 is 460530265712.

It is an interprime number because it is at equal distance from previous prime (2175620350637) and next prime (2175620350643).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2175620350643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1236147047 + ... + 1236148806.

Almost surely, 2^{2175620350640} is an apocalyptic number.

2175620350640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175620350640 is an abundant number, since it is smaller than the sum of its proper divisors (3342543995488).

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

2175620350640 is a wasteful number, since it uses less digits than its factorization.

2175620350640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472295877 (or 2472295871 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 2175620350640 in words is "two trillion, one hundred seventy-five billion, six hundred twenty million, three hundred fifty thousand, six hundred forty".