1516545120464 has 40 divisors (see below), whose sum is σ = 3344791223232. Its totient is φ = 659367441920.

The previous prime is 1516545120421. The next prime is 1516545120469. The reversal of 1516545120464 is 4640215456151.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516545120469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187316249 + ... + 187324344.

Almost surely, 2^{1516545120464} is an apocalyptic number.

It is an amenable number.

1516545120464 is an abundant number, since it is smaller than the sum of its proper divisors (1828246102768).

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

1516545120464 is a wasteful number, since it uses less digits than its factorization.

1516545120464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374640635 (or 374640629 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 1516545120464 in words is "one trillion, five hundred sixteen billion, five hundred forty-five million, one hundred twenty thousand, four hundred sixty-four".