1156799027475 has 288 divisors, whose sum is σ = 2650266038784. Its totient is φ = 487088640000.

The previous prime is 1156799027431. The next prime is 1156799027477. The reversal of 1156799027475 is 5747209976511.

1156799027475 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 79 + 90 + 2 + 7 + 475 = 666.

It is not a de Polignac number, because 1156799027475 - 2⁶ = 1156799027411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1156799027477) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 289125475 + ... + 289129475.

Almost surely, 2^{1156799027475} is an apocalyptic number.

1156799027475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1156799027475 is an abundant number, since it is smaller than the sum of its proper divisors (1493467011309).

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

1156799027475 is a wasteful number, since it uses less digits than its factorization.

1156799027475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 33339600, while the sum is 63.

The spelling of 1156799027475 in words is "one trillion, one hundred fifty-six billion, seven hundred ninety-nine million, twenty-seven thousand, four hundred seventy-five".