145936656972 has 18 divisors (see below), whose sum is σ = 368895438548. Its totient is φ = 48645552312.

The previous prime is 145936656967. The next prime is 145936657003. The reversal of 145936656972 is 279656639541.

145936656972 is a `hidden beast` number, since 1 + 4 + 5 + 9 + 3 + 66 + 569 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2026897978 + ... + 2026898049.

Almost surely, 2^145936656972 is an apocalyptic number.

145936656972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145936656972 is an abundant number, since it is smaller than the sum of its proper divisors (222958781576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145936656972 is a wasteful number, since it uses less digits than its factorization.

145936656972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053796037 (or 4053796032 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 63.

The spelling of 145936656972 in words is "one hundred forty-five billion, nine hundred thirty-six million, six hundred fifty-six thousand, nine hundred seventy-two".