1485697997664 has 72 divisors (see below), whose sum is σ = 4447319680440. Its totient is φ = 469167787008.

The previous prime is 1485697997627. The next prime is 1485697997687. The reversal of 1485697997664 is 4667997965841.

1485697997664 is a `hidden beast` number, since 1 + 48 + 569 + 7 + 9 + 9 + 7 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135749097 + ... + 135760040.

It is an arithmetic number, because the mean of its divisors is an integer number (61768328895).

Almost surely, 2^{1485697997664} is an apocalyptic number.

It is an amenable number.

1485697997664 is an abundant number, since it is smaller than the sum of its proper divisors (2961621682776).

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

1485697997664 is a wasteful number, since it uses less digits than its factorization.

1485697997664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271509172 (or 271509161 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 81.

The spelling of 1485697997664 in words is "one trillion, four hundred eighty-five billion, six hundred ninety-seven million, nine hundred ninety-seven thousand, six hundred sixty-four".