12157115537070 has 64 divisors (see below), whose sum is σ = 37050256880640. Its totient is φ = 2778769265184.

The previous prime is 12157115537051. The next prime is 12157115537087. The reversal of 12157115537070 is 7073551175121.

It is a happy number.

12157115537070 is a `hidden beast` number, since 1 + 2 + 1 + 571 + 1 + 5 + 5 + 3 + 7 + 0 + 70 = 666.

12157115537070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3216166242 + ... + 3216170021.

It is an arithmetic number, because the mean of its divisors is an integer number (578910263760).

Almost surely, 2^{12157115537070} is an apocalyptic number.

12157115537070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12157115537070 is an abundant number, since it is smaller than the sum of its proper divisors (24893141343570).

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

12157115537070 is a wasteful number, since it uses less digits than its factorization.

12157115537070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432336286 (or 6432336280 counting only the distinct ones).

The product of its (nonzero) digits is 257250, while the sum is 45.

The spelling of 12157115537070 in words is "twelve trillion, one hundred fifty-seven billion, one hundred fifteen million, five hundred thirty-seven thousand, seventy".