152561525666 has 32 divisors (see below), whose sum is σ = 250952523840. Its totient is φ = 68983588800.

The previous prime is 152561525591. The next prime is 152561525707. The reversal of 152561525666 is 666525165251.

It is a super-2 number, since 2×152561525666² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11082860 + ... + 11096616.

It is an arithmetic number, because the mean of its divisors is an integer number (7842266370).

Almost surely, 2^152561525666 is an apocalyptic number.

152561525666 is a deficient number, since it is larger than the sum of its proper divisors (98390998174).

152561525666 is a wasteful number, since it uses less digits than its factorization.

152561525666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16370.

The product of its digits is 3240000, while the sum is 50.

The spelling of 152561525666 in words is "one hundred fifty-two billion, five hundred sixty-one million, five hundred twenty-five thousand, six hundred sixty-six".