66047832 has 64 divisors (see below), whose sum is σ = 184665600. Its totient is φ = 21872160.

The previous prime is 66047827. The next prime is 66047851. The reversal of 66047832 is 23874066.

It is a super-2 number, since 2×66047832² = 8724632223800448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35157 + ... + 36987.

It is an arithmetic number, because the mean of its divisors is an integer number (2885400).

Almost surely, 2^66047832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66047832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92332800).

66047832 is an abundant number, since it is smaller than the sum of its proper divisors (118617768).

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

66047832 is a wasteful number, since it uses less digits than its factorization.

66047832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 66047832 is about 8126.9817275542. The cubic root of 66047832 is about 404.2216050495.

The spelling of 66047832 in words is "sixty-six million, forty-seven thousand, eight hundred thirty-two".