11657070537 has 32 divisors (see below), whose sum is σ = 18071771904. Its totient is φ = 6545664000.

The previous prime is 11657070533. The next prime is 11657070571. The reversal of 11657070537 is 73507075611.

It is not a de Polignac number, because 11657070537 - 2² = 11657070533 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11657070533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1534693 + ... + 1542269.

It is an arithmetic number, because the mean of its divisors is an integer number (564742872).

Almost surely, 2^11657070537 is an apocalyptic number.

It is an amenable number.

11657070537 is a deficient number, since it is larger than the sum of its proper divisors (6414701367).

11657070537 is a wasteful number, since it uses less digits than its factorization.

11657070537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849.

The product of its (nonzero) digits is 154350, while the sum is 42.

The spelling of 11657070537 in words is "eleven billion, six hundred fifty-seven million, seventy thousand, five hundred thirty-seven".