66457002 has 16 divisors (see below), whose sum is σ = 133005600. Its totient is φ = 22137072.

The previous prime is 66456991. The next prime is 66457031. The reversal of 66457002 is 20075466.

It is a super-2 number, since 2×66457002² = 8833066229656008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8853 + ... + 14535.

It is an arithmetic number, because the mean of its divisors is an integer number (8312850).

Almost surely, 2^66457002 is an apocalyptic number.

66457002 is an abundant number, since it is smaller than the sum of its proper divisors (66548598).

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

66457002 is a wasteful number, since it uses less digits than its factorization.

66457002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66457002 is about 8152.1164123190. The cubic root of 66457002 is about 405.0546123581.

The spelling of 66457002 in words is "sixty-six million, four hundred fifty-seven thousand, two".