2161500454512 has 60 divisors (see below), whose sum is σ = 6913370504560. Its totient is φ = 617571558144.

The previous prime is 2161500454507. The next prime is 2161500454517. The reversal of 2161500454512 is 2154540051612.

2161500454512 is a `hidden beast` number, since 2 + 1 + 6 + 150 + 0 + 454 + 51 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2161500454507) and next prime (2161500454517).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161500454517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1072171837 + ... + 1072173852.

Almost surely, 2^{2161500454512} is an apocalyptic number.

It is an amenable number.

2161500454512 is an abundant number, since it is smaller than the sum of its proper divisors (4751870050048).

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

2161500454512 is a wasteful number, since it uses less digits than its factorization.

2161500454512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144345710 (or 2144345701 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 2161500454512 in words is "two trillion, one hundred sixty-one billion, five hundred million, four hundred fifty-four thousand, five hundred twelve".