31545663116 has 48 divisors (see below), whose sum is σ = 62201610240. Its totient is φ = 13868496000.

The previous prime is 31545663091. The next prime is 31545663119. The reversal of 31545663116 is 61136654513.

It is a super-2 number, since 2×31545663116² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31545663119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2843861 + ... + 2854931.

It is an arithmetic number, because the mean of its divisors is an integer number (1295866880).

Almost surely, 2^31545663116 is an apocalyptic number.

It is an amenable number.

31545663116 is a deficient number, since it is larger than the sum of its proper divisors (30655947124).

31545663116 is a wasteful number, since it uses less digits than its factorization.

31545663116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206 (or 13204 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The spelling of 31545663116 in words is "thirty-one billion, five hundred forty-five million, six hundred sixty-three thousand, one hundred sixteen".