156672001020 has 96 divisors (see below), whose sum is σ = 464636390400. Its totient is φ = 39308903424.

The previous prime is 156672000973. The next prime is 156672001051. The reversal of 156672001020 is 20100276651.

It is a super-2 number, since 2×156672001020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3362241 + ... + 3408519.

It is an arithmetic number, because the mean of its divisors is an integer number (4839962400).

Almost surely, 2^156672001020 is an apocalyptic number.

156672001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156672001020 is an abundant number, since it is smaller than the sum of its proper divisors (307964389380).

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

156672001020 is a wasteful number, since it uses less digits than its factorization.

156672001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49627 (or 49625 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 156672001020 its reverse (20100276651), we get a palindrome (176772277671).

The spelling of 156672001020 in words is "one hundred fifty-six billion, six hundred seventy-two million, one thousand, twenty".