1157170217052 has 48 divisors (see below), whose sum is σ = 2790735155712. Its totient is φ = 372968117760.

The previous prime is 1157170217051. The next prime is 1157170217059. The reversal of 1157170217052 is 2507120717511.

It is a super-3 number, since 3×1157170217052³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1157170217052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157170217051) 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 15 ways as a sum of consecutive naturals, for example, 12312949 + ... + 12406572.

It is an arithmetic number, because the mean of its divisors is an integer number (58140315744).

Almost surely, 2^{1157170217052} is an apocalyptic number.

1157170217052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1157170217052 is an abundant number, since it is smaller than the sum of its proper divisors (1633564938660).

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

1157170217052 is a wasteful number, since it uses less digits than its factorization.

1157170217052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24719658 (or 24719656 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 39.

The spelling of 1157170217052 in words is "one trillion, one hundred fifty-seven billion, one hundred seventy million, two hundred seventeen thousand, fifty-two".