36666609942 has 64 divisors (see below), whose sum is σ = 74676142080. Its totient is φ = 12000912000.

The previous prime is 36666609923. The next prime is 36666609949. The reversal of 36666609942 is 24990666663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36666609949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55471092 + ... + 55471752.

It is an arithmetic number, because the mean of its divisors is an integer number (1166814720).

Almost surely, 2^36666609942 is an apocalyptic number.

36666609942 is an abundant number, since it is smaller than the sum of its proper divisors (38009532138).

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

36666609942 is a wasteful number, since it uses less digits than its factorization.

36666609942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389.

The product of its (nonzero) digits is 15116544, while the sum is 57.

The spelling of 36666609942 in words is "thirty-six billion, six hundred sixty-six million, six hundred nine thousand, nine hundred forty-two".