12377822861520 has 160 divisors (see below), whose sum is σ = 43161078407040. Its totient is φ = 3300752716416.

The previous prime is 12377822861477. The next prime is 12377822861543. The reversal of 12377822861520 is 2516822877321.

12377822861520 is a `hidden beast` number, since 1 + 2 + 37 + 7 + 8 + 2 + 2 + 86 + 1 + 520 = 666.

12377822861520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12377822861520² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35198334 + ... + 35548253.

It is an arithmetic number, because the mean of its divisors is an integer number (269756740044).

Almost surely, 2^{12377822861520} is an apocalyptic number.

12377822861520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12377822861520 is an abundant number, since it is smaller than the sum of its proper divisors (30783255545520).

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

12377822861520 is an frugal number, since it uses more digits than its factorization.

12377822861520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70746621 (or 70746597 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 12377822861520 in words is "twelve trillion, three hundred seventy-seven billion, eight hundred twenty-two million, eight hundred sixty-one thousand, five hundred twenty".