42606666432 has 672 divisors, whose sum is σ = 150634598400. Its totient is φ = 11346739200.

The previous prime is 42606666409. The next prime is 42606666433. The reversal of 42606666432 is 23466660624.

It is a super-2 number, since 2×42606666432² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42606666433) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 223071457 + ... + 223071647.

Almost surely, 2^42606666432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42606666432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75317299200).

42606666432 is an abundant number, since it is smaller than the sum of its proper divisors (108027931968).

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

42606666432 is a wasteful number, since it uses less digits than its factorization.

42606666432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 42606666432 in words is "forty-two billion, six hundred six million, six hundred sixty-six thousand, four hundred thirty-two".