66496020 has 24 divisors (see below), whose sum is σ = 186189024. Its totient is φ = 17732256.

The previous prime is 66496007. The next prime is 66496033. The reversal of 66496020 is 2069466.

It is an interprime number because it is at equal distance from previous prime (66496007) and next prime (66496033).

It is a congruent number.

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, 554074 + ... + 554193.

It is an arithmetic number, because the mean of its divisors is an integer number (7757876).

Almost surely, 2^66496020 is an apocalyptic number.

66496020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66496020 is an abundant number, since it is smaller than the sum of its proper divisors (119693004).

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

66496020 is a wasteful number, since it uses less digits than its factorization.

66496020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108279 (or 1108277 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 66496020 is about 8154.5091820416. The cubic root of 66496020 is about 405.1338682598.

The spelling of 66496020 in words is "sixty-six million, four hundred ninety-six thousand, twenty".