42402624666 has 24 divisors (see below), whose sum is σ = 86435573280. Its totient is φ = 13867519536.

The previous prime is 42402624661. The next prime is 42402624679. The reversal of 42402624666 is 66642620424.

It is a super-2 number, since 2×42402624666² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42402624661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1241086 + ... + 1274793.

It is an arithmetic number, because the mean of its divisors is an integer number (3601482220).

Almost surely, 2^42402624666 is an apocalyptic number.

42402624666 is an abundant number, since it is smaller than the sum of its proper divisors (44032948614).

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

42402624666 is a wasteful number, since it uses less digits than its factorization.

42402624666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515990 (or 2515937 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 42402624666 in words is "forty-two billion, four hundred two million, six hundred twenty-four thousand, six hundred sixty-six".