12155971310 has 16 divisors (see below), whose sum is σ = 25006569696. Its totient is φ = 4167761568.

The previous prime is 12155971291. The next prime is 12155971313. The reversal of 12155971310 is 1317955121.

It is a super-2 number, since 2×12155971310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155971313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86828297 + ... + 86828436.

It is an arithmetic number, because the mean of its divisors is an integer number (1562910606).

Almost surely, 2^12155971310 is an apocalyptic number.

12155971310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12155971310 is an abundant number, since it is smaller than the sum of its proper divisors (12850598386).

12155971310 is a wasteful number, since it uses less digits than its factorization.

12155971310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173656747.

The product of its (nonzero) digits is 9450, while the sum is 35.

The spelling of 12155971310 in words is "twelve billion, one hundred fifty-five million, nine hundred seventy-one thousand, three hundred ten".