2151079186320 has 120 divisors (see below), whose sum is σ = 7224309116856. Its totient is φ = 573599821824.

The previous prime is 2151079186313. The next prime is 2151079186331. The reversal of 2151079186320 is 236819701512.

2151079186320 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 0 + 7 + 9 + 1 + 8 + 632 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 97853849856 + 2053225336464 = 312816^2 + 1432908^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×2151079186320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33154552 + ... + 33219368.

Almost surely, 2^{2151079186320} is an apocalyptic number.

2151079186320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151079186320 is an abundant number, since it is smaller than the sum of its proper divisors (5073229930536).

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

2151079186320 is a wasteful number, since it uses less digits than its factorization.

2151079186320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110929 (or 110920 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 2151079186320 in words is "two trillion, one hundred fifty-one billion, seventy-nine million, one hundred eighty-six thousand, three hundred twenty".