163129370499 has 16 divisors (see below), whose sum is σ = 241800347040. Its totient is φ = 108695671200.

The previous prime is 163129370483. The next prime is 163129370519. The reversal of 163129370499 is 994073921361.

It is a happy number.

163129370499 is a `hidden beast` number, since 1 + 63 + 1 + 2 + 93 + 7 + 0 + 499 = 666.

It is not a de Polignac number, because 163129370499 - 2⁴ = 163129370483 is a prime.

It is a super-2 number, since 2×163129370499² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163129320499) 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, 1537792 + ... + 1640445.

It is an arithmetic number, because the mean of its divisors is an integer number (15112521690).

Almost surely, 2^163129370499 is an apocalyptic number.

163129370499 is a deficient number, since it is larger than the sum of its proper divisors (78670976541).

163129370499 is a wasteful number, since it uses less digits than its factorization.

163129370499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180147 (or 3180141 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 163129370499 in words is "one hundred sixty-three billion, one hundred twenty-nine million, three hundred seventy thousand, four hundred ninety-nine".