3656212531026 has 16 divisors (see below), whose sum is σ = 7977190976928. Its totient is φ = 1107943191200.

The previous prime is 3656212531007. The next prime is 3656212531043. The reversal of 3656212531026 is 6201352126563.

It is a happy number.

It is a super-2 number, since 2×3656212531026² (a number of 26 digits) contains 22 as substring.

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, 27698579715 + ... + 27698579846.

It is an arithmetic number, because the mean of its divisors is an integer number (498574436058).

Almost surely, 2^{3656212531026} is an apocalyptic number.

3656212531026 is an abundant number, since it is smaller than the sum of its proper divisors (4320978445902).

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

3656212531026 is a wasteful number, since it uses less digits than its factorization.

3656212531026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55397159577.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 3656212531026 its reverse (6201352126563), we get a palindrome (9857564657589).

The spelling of 3656212531026 in words is "three trillion, six hundred fifty-six billion, two hundred twelve million, five hundred thirty-one thousand, twenty-six".