1156108790025 has 120 divisors (see below), whose sum is σ = 2483974616640. Its totient is φ = 520618285440.

The previous prime is 1156108789991. The next prime is 1156108790027. The reversal of 1156108790025 is 5200978016511.

1156108790025 is a `hidden beast` number, since 1 + 1 + 5 + 610 + 8 + 7 + 9 + 0 + 0 + 25 = 666.

It is not a de Polignac number, because 1156108790025 - 2¹² = 1156108785929 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1156108790027) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 341071 + ... + 1558379.

It is an arithmetic number, because the mean of its divisors is an integer number (20699788472).

Almost surely, 2^{1156108790025} is an apocalyptic number.

1156108790025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1156108790025 is an abundant number, since it is smaller than the sum of its proper divisors (1327865826615).

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

1156108790025 is a wasteful number, since it uses less digits than its factorization.

1156108790025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217405 (or 1217391 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 1156108790025 in words is "one trillion, one hundred fifty-six billion, one hundred eight million, seven hundred ninety thousand, twenty-five".