1361611333664 has 48 divisors (see below), whose sum is σ = 2797367130432. Its totient is φ = 651171932928.

The previous prime is 1361611333651. The next prime is 1361611333681. The reversal of 1361611333664 is 4663331161631.

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, 20024267 + ... + 20092149.

It is an arithmetic number, because the mean of its divisors is an integer number (58278481884).

Almost surely, 2^{1361611333664} is an apocalyptic number.

It is an amenable number.

1361611333664 is an abundant number, since it is smaller than the sum of its proper divisors (1435755796768).

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

1361611333664 is a wasteful number, since it uses less digits than its factorization.

1361611333664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95169 (or 95161 counting only the distinct ones).

The product of its digits is 419904, while the sum is 44.

The spelling of 1361611333664 in words is "one trillion, three hundred sixty-one billion, six hundred eleven million, three hundred thirty-three thousand, six hundred sixty-four".