66152370 has 32 divisors (see below), whose sum is σ = 165670272. Its totient is φ = 16873472.

The previous prime is 66152353. The next prime is 66152371. The reversal of 66152370 is 7325166.

It is a super-2 number, since 2×66152370² = 8752272113233800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (66152371) 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, 47247 + ... + 48626.

It is an arithmetic number, because the mean of its divisors is an integer number (5177196).

Almost surely, 2^66152370 is an apocalyptic number.

66152370 is an abundant number, since it is smaller than the sum of its proper divisors (99517902).

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

66152370 is a wasteful number, since it uses less digits than its factorization.

66152370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95906.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 66152370 is about 8133.4107236755. The cubic root of 66152370 is about 404.4347548352.

The spelling of 66152370 in words is "sixty-six million, one hundred fifty-two thousand, three hundred seventy".