42101666432 has 64 divisors (see below), whose sum is σ = 98948682240. Its totient is φ = 17461509120.

The previous prime is 42101666417. The next prime is 42101666441. The reversal of 42101666432 is 23466610124.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×42101666432² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42101666392 and 42101666401.

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, 730103 + ... + 785654.

It is an arithmetic number, because the mean of its divisors is an integer number (1546073160).

Almost surely, 2^42101666432 is an apocalyptic number.

It is an amenable number.

42101666432 is an abundant number, since it is smaller than the sum of its proper divisors (56847015808).

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

42101666432 is a wasteful number, since it uses less digits than its factorization.

42101666432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515809 (or 1515797 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 42101666432 in words is "forty-two billion, one hundred one million, six hundred sixty-six thousand, four hundred thirty-two".