156473856 has 400 divisors, whose sum is σ = 594158400. Its totient is φ = 40642560.

The previous prime is 156473843. The next prime is 156473887. The reversal of 156473856 is 658374651.

156473856 is a `hidden beast` number, since 1 + 564 + 7 + 3 + 85 + 6 = 666.

It is a super-2 number, since 2×156473856² = 48968135223017472, which 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 39 ways as a sum of consecutive naturals, for example, 14224891 + ... + 14224901.

It is an arithmetic number, because the mean of its divisors is an integer number (1485396).

Almost surely, 2^156473856 is an apocalyptic number.

156473856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156473856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297079200).

156473856 is an abundant number, since it is smaller than the sum of its proper divisors (437684544).

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

156473856 is an frugal number, since it uses more digits than its factorization.

156473856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 23 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 156473856 is about 12508.9510351588. The cubic root of 156473856 is about 538.8657674393.

It can be divided in two parts, 15647 and 3856, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 156473856 in words is "one hundred fifty-six million, four hundred seventy-three thousand, eight hundred fifty-six".