1601647920460 has 48 divisors (see below), whose sum is σ = 3844250936064. Its totient is φ = 549094154688.

The previous prime is 1601647920443. The next prime is 1601647920493. The reversal of 1601647920460 is 640297461061.

It is a super-2 number, since 2×1601647920460² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1601647920460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412407 + ... + 2279953.

It is an arithmetic number, because the mean of its divisors is an integer number (80088561168).

Almost surely, 2^{1601647920460} is an apocalyptic number.

1601647920460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601647920460 is an abundant number, since it is smaller than the sum of its proper divisors (2242603015604).

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

1601647920460 is a wasteful number, since it uses less digits than its factorization.

1601647920460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880750 (or 880748 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 1601647920460 in words is "one trillion, six hundred one billion, six hundred forty-seven million, nine hundred twenty thousand, four hundred sixty".