10155609640 has 32 divisors (see below), whose sum is σ = 24927406560. Its totient is φ = 3692948800.

The previous prime is 10155609637. The next prime is 10155609661. The reversal of 10155609640 is 4690655101.

It is a self number, because there is not a number n which added to its sum of digits gives 10155609640.

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, 11540026 + ... + 11540905.

It is an arithmetic number, because the mean of its divisors is an integer number (778981455).

Almost surely, 2^10155609640 is an apocalyptic number.

10155609640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10155609640 is an abundant number, since it is smaller than the sum of its proper divisors (14771796920).

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

10155609640 is a wasteful number, since it uses less digits than its factorization.

10155609640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080953 (or 23080949 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 10155609640 in words is "ten billion, one hundred fifty-five million, six hundred nine thousand, six hundred forty".