10040231556 has 60 divisors (see below), whose sum is σ = 26805639168. Its totient is φ = 3275531568.

The previous prime is 10040231527. The next prime is 10040231563. The reversal of 10040231556 is 65513204001.

10040231556 is a `hidden beast` number, since 100 + 4 + 0 + 2 + 3 + 1 + 556 = 666.

It is a super-2 number, since 2×10040231556² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 314436 + ... + 344891.

Almost surely, 2^10040231556 is an apocalyptic number.

It is an amenable number.

10040231556 is an abundant number, since it is smaller than the sum of its proper divisors (16765407612).

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

10040231556 is a wasteful number, since it uses less digits than its factorization.

10040231556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659390 (or 659379 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 10040231556 its reverse (65513204001), we get a palindrome (75553435557).

The spelling of 10040231556 in words is "ten billion, forty million, two hundred thirty-one thousand, five hundred fifty-six".