151616720 has 40 divisors (see below), whose sum is σ = 358299240. Its totient is φ = 59650560.

The previous prime is 151616701. The next prime is 151616767. The reversal of 151616720 is 27616151.

It can be written as a sum of positive squares in 4 ways, for example, as 425104 + 151191616 = 652^2 + 12296^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10655 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (8957481).

Almost surely, 2^151616720 is an apocalyptic number.

151616720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151616720 is an abundant number, since it is smaller than the sum of its proper divisors (206682520).

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

151616720 is a wasteful number, since it uses less digits than its factorization.

151616720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31143 (or 31137 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 151616720 is about 12313.2741380999. The cubic root of 151616720 is about 533.2313798171.

The spelling of 151616720 in words is "one hundred fifty-one million, six hundred sixteen thousand, seven hundred twenty".