660156056147 has 8 divisors (see below), whose sum is σ = 754713662976. Its totient is φ = 565660849032.

The previous prime is 660156056113. The next prime is 660156056149. The reversal of 660156056147 is 741650651066.

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

It is a cyclic number.

It is not a de Polignac number, because 660156056147 - 2⁸ = 660156055891 is a prime.

It is a super-2 number, since 2×660156056147² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (660156056149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15577253 + ... + 15619574.

It is an arithmetic number, because the mean of its divisors is an integer number (94339207872).

Almost surely, 2^660156056147 is an apocalyptic number.

660156056147 is a deficient number, since it is larger than the sum of its proper divisors (94557606829).

660156056147 is a wasteful number, since it uses less digits than its factorization.

660156056147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31199857.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 660156056147 in words is "six hundred sixty billion, one hundred fifty-six million, fifty-six thousand, one hundred forty-seven".