4661157397180 has 24 divisors (see below), whose sum is σ = 10125962622720. Its totient is φ = 1800171132480.

The previous prime is 4661157397163. The next prime is 4661157397207. The reversal of 4661157397180 is 817937511664.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018238556 + ... + 4018239715.

It is an arithmetic number, because the mean of its divisors is an integer number (421915109280).

Almost surely, 2^{4661157397180} is an apocalyptic number.

It is an amenable number.

4661157397180 is an abundant number, since it is smaller than the sum of its proper divisors (5464805225540).

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

4661157397180 is a wasteful number, since it uses less digits than its factorization.

4661157397180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036478309 (or 8036478307 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 4661157397180 in words is "four trillion, six hundred sixty-one billion, one hundred fifty-seven million, three hundred ninety-seven thousand, one hundred eighty".