152661720 has 64 divisors (see below), whose sum is σ = 459095040. Its totient is φ = 40611200.

The previous prime is 152661689. The next prime is 152661721. The reversal of 152661720 is 27166251.

152661720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152661721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57625 + ... + 60215.

It is an arithmetic number, because the mean of its divisors is an integer number (7173360).

Almost surely, 2^152661720 is an apocalyptic number.

152661720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152661720 is an abundant number, since it is smaller than the sum of its proper divisors (306433320).

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

152661720 is a wasteful number, since it uses less digits than its factorization.

152661720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 152661720 is about 12355.6351516221. The cubic root of 152661720 is about 534.4536536871.

The spelling of 152661720 in words is "one hundred fifty-two million, six hundred sixty-one thousand, seven hundred twenty".