66429256290 has 64 divisors (see below), whose sum is σ = 164973317760. Its totient is φ = 17098905600.

The previous prime is 66429256273. The next prime is 66429256303. The reversal of 66429256290 is 9265292466.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4038162 + ... + 4054578.

It is an arithmetic number, because the mean of its divisors is an integer number (2577708090).

Almost surely, 2^66429256290 is an apocalyptic number.

66429256290 is an abundant number, since it is smaller than the sum of its proper divisors (98544061470).

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

66429256290 is a wasteful number, since it uses less digits than its factorization.

66429256290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21107.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 66429256290 in words is "sixty-six billion, four hundred twenty-nine million, two hundred fifty-six thousand, two hundred ninety".