12180501357 has 8 divisors (see below), whose sum is σ = 16247234976. Its totient is φ = 8117050992.

The previous prime is 12180501349. The next prime is 12180501383. The reversal of 12180501357 is 75310508121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12180501357 - 2³ = 12180501349 is a prime.

It is a super-2 number, since 2×12180501357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180501337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812143 + ... + 827004.

It is an arithmetic number, because the mean of its divisors is an integer number (2030904372).

Almost surely, 2^12180501357 is an apocalyptic number.

It is an amenable number.

12180501357 is a deficient number, since it is larger than the sum of its proper divisors (4066733619).

12180501357 is a wasteful number, since it uses less digits than its factorization.

12180501357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641627.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 12180501357 in words is "twelve billion, one hundred eighty million, five hundred one thousand, three hundred fifty-seven".