66210032470560 has 96 divisors (see below), whose sum is σ = 227521747962432. Its totient is φ = 16050916961280.

The previous prime is 66210032470487. The next prime is 66210032470573. The reversal of 66210032470560 is 6507423001266.

It is a tau number, because it is divible by the number of its divisors (96).

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, 6269884159 + ... + 6269894718.

It is an arithmetic number, because the mean of its divisors is an integer number (2370018207942).

Almost surely, 2^{66210032470560} is an apocalyptic number.

66210032470560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66210032470560 is an abundant number, since it is smaller than the sum of its proper divisors (161311715491872).

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

66210032470560 is a wasteful number, since it uses less digits than its factorization.

66210032470560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539778906 (or 12539778898 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 66210032470560 in words is "sixty-six trillion, two hundred ten billion, thirty-two million, four hundred seventy thousand, five hundred sixty".