156423054400 has 84 divisors (see below), whose sum is σ = 385990235892. Its totient is φ = 62391746560.

The previous prime is 156423054353. The next prime is 156423054427. The reversal of 156423054400 is 4450324651.

It can be written as a sum of positive squares in 6 ways, for example, as 5014905856 + 151408148544 = 70816^2 + 389112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426324 + ... + 703276.

Almost surely, 2^156423054400 is an apocalyptic number.

156423054400 is a gapful number since it is divisible by the number (10) 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 156423054400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192995117946).

156423054400 is an abundant number, since it is smaller than the sum of its proper divisors (229567181492).

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

156423054400 is a wasteful number, since it uses less digits than its factorization.

156423054400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277328 (or 277313 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 156423054400 in words is "one hundred fifty-six billion, four hundred twenty-three million, fifty-four thousand, four hundred".