156394080900 has 108 divisors (see below), whose sum is σ = 492073213632. Its totient is φ = 41546450880.

The previous prime is 156394080883. The next prime is 156394080901. The reversal of 156394080900 is 9080493651.

It is a happy number.

156394080900 is a `hidden beast` number, since 1 + 5 + 639 + 4 + 0 + 8 + 0 + 9 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (156394080901) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93664 + ... + 567063.

Almost surely, 2^156394080900 is an apocalyptic number.

156394080900 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 156394080900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246036606816).

156394080900 is an abundant number, since it is smaller than the sum of its proper divisors (335679132732).

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

156394080900 is a wasteful number, since it uses less digits than its factorization.

156394080900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661010 (or 661000 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 156394080900 in words is "one hundred fifty-six billion, three hundred ninety-four million, eighty thousand, nine hundred".