66928707104034 has 32 divisors (see below), whose sum is σ = 134628322885056. Its totient is φ = 22181429183040.

The previous prime is 66928707103927. The next prime is 66928707104041. The reversal of 66928707104034 is 43040170782966.

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, 42339457 + ... + 43891764.

It is an arithmetic number, because the mean of its divisors is an integer number (4207135090158).

Almost surely, 2^{66928707104034} is an apocalyptic number.

66928707104034 is an abundant number, since it is smaller than the sum of its proper divisors (67699615781022).

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

66928707104034 is a wasteful number, since it uses less digits than its factorization.

66928707104034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86231970.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 66928707104034 in words is "sixty-six trillion, nine hundred twenty-eight billion, seven hundred seven million, one hundred four thousand, thirty-four".