154997372916 has 36 divisors (see below), whose sum is σ = 391904604000. Its totient is φ = 51651853968.

The previous prime is 154997372897. The next prime is 154997372939. The reversal of 154997372916 is 619273799451.

154997372916 is a `hidden beast` number, since 1 + 5 + 499 + 73 + 72 + 9 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×154997372916² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444966 + ... + 712733.

It is an arithmetic number, because the mean of its divisors is an integer number (10886239000).

Almost surely, 2^154997372916 is an apocalyptic number.

It is an amenable number.

154997372916 is an abundant number, since it is smaller than the sum of its proper divisors (236907231084).

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

154997372916 is a wasteful number, since it uses less digits than its factorization.

154997372916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161428 (or 1161423 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The spelling of 154997372916 in words is "one hundred fifty-four billion, nine hundred ninety-seven million, three hundred seventy-two thousand, nine hundred sixteen".