156420125563 has 8 divisors (see below), whose sum is σ = 169175418048. Its totient is φ = 143768115264.

The previous prime is 156420125503. The next prime is 156420125623. The reversal of 156420125563 is 365521024651.

It is an interprime number because it is at equal distance from previous prime (156420125503) and next prime (156420125623).

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 156420125563 - 2³³ = 147830190971 is a prime.

It is a super-2 number, since 2×156420125563² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156420125503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25817395 + ... + 25823452.

It is an arithmetic number, because the mean of its divisors is an integer number (21146927256).

Almost surely, 2^156420125563 is an apocalyptic number.

156420125563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

156420125563 is a deficient number, since it is larger than the sum of its proper divisors (12755292485).

156420125563 is a wasteful number, since it uses less digits than its factorization.

156420125563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51641093.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 156420125563 in words is "one hundred fifty-six billion, four hundred twenty million, one hundred twenty-five thousand, five hundred sixty-three".