66046631 has 8 divisors (see below), whose sum is σ = 75550080. Its totient is φ = 56560248.

The previous prime is 66046619. The next prime is 66046691. The reversal of 66046631 is 13664066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66046631 - 2⁶ = 66046567 is a prime.

It is a super-2 number, since 2×66046631² = 8724314932900322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66046691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5540 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (9443760).

Almost surely, 2^66046631 is an apocalyptic number.

66046631 is a deficient number, since it is larger than the sum of its proper divisors (9503449).

66046631 is a wasteful number, since it uses less digits than its factorization.

66046631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66046631 is about 8126.9078375481. The cubic root of 66046631 is about 404.2191549408.

The spelling of 66046631 in words is "sixty-six million, forty-six thousand, six hundred thirty-one".