66042154562524 has 24 divisors (see below), whose sum is σ = 132476250714080. Its totient is φ = 28219793043456.

The previous prime is 66042154562507. The next prime is 66042154562533. The reversal of 66042154562524 is 42526545124066.

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, 3499468869 + ... + 3499487740.

Almost surely, 2^{66042154562524} is an apocalyptic number.

It is an amenable number.

66042154562524 is an abundant number, since it is smaller than the sum of its proper divisors (66434096151556).

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

66042154562524 is a wasteful number, since it uses less digits than its factorization.

66042154562524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998956957 (or 6998956955 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 52.

The spelling of 66042154562524 in words is "sixty-six trillion, forty-two billion, one hundred fifty-four million, five hundred sixty-two thousand, five hundred twenty-four".