156780045072 has 200 divisors, whose sum is σ = 518904097536. Its totient is φ = 44767240704.

The previous prime is 156780045043. The next prime is 156780045073. The reversal of 156780045072 is 270540087651.

156780045072 is a `hidden beast` number, since 1 + 5 + 67 + 80 + 0 + 4 + 507 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (156780045073) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18711348 + ... + 18719724.

Almost surely, 2^156780045072 is an apocalyptic number.

156780045072 is a gapful number since it is divisible by the number (12) 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 156780045072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259452048768).

156780045072 is an abundant number, since it is smaller than the sum of its proper divisors (362124052464).

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

156780045072 is a wasteful number, since it uses less digits than its factorization.

156780045072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10467 (or 10452 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 156780045072 in words is "one hundred fifty-six billion, seven hundred eighty million, forty-five thousand, seventy-two".