1648611044992 has 64 divisors (see below), whose sum is σ = 3537602719200. Its totient is φ = 762760018944.

The previous prime is 1648611044939. The next prime is 1648611045041. The reversal of 1648611044992 is 2994401168461.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1648611044992² (a number of 25 digits) contains 22 as substring.

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, 7777783 + ... + 7986934.

Almost surely, 2^{1648611044992} is an apocalyptic number.

It is an amenable number.

1648611044992 is an abundant number, since it is smaller than the sum of its proper divisors (1888991674208).

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

1648611044992 is a wasteful number, since it uses less digits than its factorization.

1648611044992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15764793 (or 15764781 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 1648611044992 in words is "one trillion, six hundred forty-eight billion, six hundred eleven million, forty-four thousand, nine hundred ninety-two".