11651656070 has 16 divisors (see below), whose sum is σ = 20981701728. Its totient is φ = 4658724480.

The previous prime is 11651656033. The next prime is 11651656091. The reversal of 11651656070 is 7065615611.

It is a super-2 number, since 2×11651656070² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 216866 + ... + 265205.

It is an arithmetic number, because the mean of its divisors is an integer number (1311356358).

Almost surely, 2^11651656070 is an apocalyptic number.

11651656070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11651656070 is a deficient number, since it is larger than the sum of its proper divisors (9330045658).

11651656070 is a wasteful number, since it uses less digits than its factorization.

11651656070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484495.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 11651656070 in words is "eleven billion, six hundred fifty-one million, six hundred fifty-six thousand, seventy".