2552556661636 has 24 divisors (see below), whose sum is σ = 4501203005376. Its totient is φ = 1266499222560.

The previous prime is 2552556661609. The next prime is 2552556661727. The reversal of 2552556661636 is 6361666552552.

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, 32620270 + ... + 32698426.

It is an arithmetic number, because the mean of its divisors is an integer number (187550125224).

Almost surely, 2^{2552556661636} is an apocalyptic number.

It is an amenable number.

2552556661636 is a deficient number, since it is larger than the sum of its proper divisors (1948646343740).

2552556661636 is a wasteful number, since it uses less digits than its factorization.

2552556661636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140619 (or 140617 counting only the distinct ones).

The product of its digits is 58320000, while the sum is 58.

The spelling of 2552556661636 in words is "two trillion, five hundred fifty-two billion, five hundred fifty-six million, six hundred sixty-one thousand, six hundred thirty-six".