156798774144 has 48 divisors (see below), whose sum is σ = 451204809120. Its totient is φ = 52266257664.

The previous prime is 156798774109. The next prime is 156798774173. The reversal of 156798774144 is 441477897651.

156798774144 is a `hidden beast` number, since 1 + 5 + 67 + 98 + 77 + 414 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×156798774144² (a number of 23 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 68053872 + ... + 68056175.

It is an arithmetic number, because the mean of its divisors is an integer number (9400100190).

Almost surely, 2^156798774144 is an apocalyptic number.

It is an amenable number.

156798774144 is an abundant number, since it is smaller than the sum of its proper divisors (294406034976).

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

156798774144 is a wasteful number, since it uses less digits than its factorization.

156798774144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136110067 (or 136110052 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 156798774144 in words is "one hundred fifty-six billion, seven hundred ninety-eight million, seven hundred seventy-four thousand, one hundred forty-four".