1636100020746 has 24 divisors (see below), whose sum is σ = 3545014580640. Its totient is φ = 545346488616.

The previous prime is 1636100020721. The next prime is 1636100020777. The reversal of 1636100020746 is 6470200016361.

It is a happy number.

1636100020746 is a `hidden beast` number, since 1 + 636 + 10 + 0 + 0 + 2 + 0 + 7 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1636100020746.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178160 + ... + 2158763.

It is an arithmetic number, because the mean of its divisors is an integer number (147708940860).

Almost surely, 2^{1636100020746} is an apocalyptic number.

1636100020746 is an abundant number, since it is smaller than the sum of its proper divisors (1908914559894).

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

1636100020746 is a wasteful number, since it uses less digits than its factorization.

1636100020746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364170 (or 3364167 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 1636100020746 in words is "one trillion, six hundred thirty-six billion, one hundred million, twenty thousand, seven hundred forty-six".