66064031 has 8 divisors (see below), whose sum is σ = 72503424. Its totient is φ = 59696920.

The previous prime is 66063983. The next prime is 66064043. The reversal of 66064031 is 13046066.

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 66064031 - 2⁶ = 66063967 is a prime.

It is a super-2 number, since 2×66064031² = 8728912383937922, 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 (66064331) 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, 16145 + ... + 19818.

It is an arithmetic number, because the mean of its divisors is an integer number (9062928).

Almost surely, 2^66064031 is an apocalyptic number.

66064031 is a deficient number, since it is larger than the sum of its proper divisors (6439393).

66064031 is a wasteful number, since it uses less digits than its factorization.

66064031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36141.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 66064031 is about 8127.9782849119. The cubic root of 66064031 is about 404.2546490335.

The spelling of 66064031 in words is "sixty-six million, sixty-four thousand, thirty-one".