156456656445445 has 32 divisors (see below), whose sum is σ = 214126572349440. Its totient is φ = 109045939537920.

The previous prime is 156456656445413. The next prime is 156456656445493. The reversal of 156456656445445 is 544544656654651.

It is not a de Polignac number, because 156456656445445 - 2⁵ = 156456656445413 is a prime.

It is a super-2 number, since 2×156456656445445² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290729400 + ... + 1290850609.

It is an arithmetic number, because the mean of its divisors is an integer number (6691455385920).

Almost surely, 2^{156456656445445} is an apocalyptic number.

It is an amenable number.

156456656445445 is a deficient number, since it is larger than the sum of its proper divisors (57669915903995).

156456656445445 is a wasteful number, since it uses less digits than its factorization.

156456656445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581580085.

The product of its digits is 4147200000, while the sum is 70.

The spelling of 156456656445445 in words is "one hundred fifty-six trillion, four hundred fifty-six billion, six hundred fifty-six million, four hundred forty-five thousand, four hundred forty-five".