66406262762602 has 64 divisors (see below), whose sum is σ = 116550015206400. Its totient is φ = 28364974470000.

The previous prime is 66406262762533. The next prime is 66406262762621. The reversal of 66406262762602 is 20626726260466.

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, 535770577 + ... + 535894507.

It is an arithmetic number, because the mean of its divisors is an integer number (1821093987600).

Almost surely, 2^{66406262762602} is an apocalyptic number.

66406262762602 is a deficient number, since it is larger than the sum of its proper divisors (50143752443798).

66406262762602 is a wasteful number, since it uses less digits than its factorization.

66406262762602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126552 (or 126538 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 55.

The spelling of 66406262762602 in words is "sixty-six trillion, four hundred six billion, two hundred sixty-two million, seven hundred sixty-two thousand, six hundred two".