1521146360646 has 48 divisors (see below), whose sum is σ = 3715564129200. Its totient is φ = 460953440640.

The previous prime is 1521146360593. The next prime is 1521146360653. The reversal of 1521146360646 is 6460636411251.

1521146360646 is a `hidden beast` number, since 1 + 5 + 2 + 1 + 1 + 4 + 636 + 0 + 6 + 4 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116395851 + ... + 116408918.

It is an arithmetic number, because the mean of its divisors is an integer number (77407586025).

Almost surely, 2^{1521146360646} is an apocalyptic number.

1521146360646 is an abundant number, since it is smaller than the sum of its proper divisors (2194417768554).

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

1521146360646 is a wasteful number, since it uses less digits than its factorization.

1521146360646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232804802 (or 232804785 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 1521146360646 in words is "one trillion, five hundred twenty-one billion, one hundred forty-six million, three hundred sixty thousand, six hundred forty-six".