11657512654 has 8 divisors (see below), whose sum is σ = 17495330328. Its totient is φ = 5825735880.

The previous prime is 11657512639. The next prime is 11657512679. The reversal of 11657512654 is 45621575611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11657512654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505397 + ... + 1513120.

It is an arithmetic number, because the mean of its divisors is an integer number (2186916291).

Almost surely, 2^11657512654 is an apocalyptic number.

11657512654 is a deficient number, since it is larger than the sum of its proper divisors (5837817674).

11657512654 is a wasteful number, since it uses less digits than its factorization.

11657512654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020450.

The product of its digits is 252000, while the sum is 43.

The spelling of 11657512654 in words is "eleven billion, six hundred fifty-seven million, five hundred twelve thousand, six hundred fifty-four".