42552240355666 has 64 divisors (see below), whose sum is σ = 71487757716480. Its totient is φ = 18899708083200.

The previous prime is 42552240355633. The next prime is 42552240355741. The reversal of 42552240355666 is 66655304225524.

It is a super-2 number, since 2×42552240355666² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37581616 + ... + 38697316.

It is an arithmetic number, because the mean of its divisors is an integer number (1116996214320).

Almost surely, 2^{42552240355666} is an apocalyptic number.

42552240355666 is a deficient number, since it is larger than the sum of its proper divisors (28935517360814).

42552240355666 is a wasteful number, since it uses less digits than its factorization.

42552240355666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116619.

The product of its (nonzero) digits is 51840000, while the sum is 55.

The spelling of 42552240355666 in words is "forty-two trillion, five hundred fifty-two billion, two hundred forty million, three hundred fifty-five thousand, six hundred sixty-six".