164190965156 has 12 divisors (see below), whose sum is σ = 304236200268. Its totient is φ = 77266336512.

The previous prime is 164190965153. The next prime is 164190965179. The reversal of 164190965156 is 651569091461.

It can be written as a sum of positive squares in 2 ways, for example, as 101607937600 + 62583027556 = 318760^2 + 250166^2 .

It is a super-2 number, since 2×164190965156² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164190965098 and 164190965107.

It is not an unprimeable number, because it can be changed into a prime (164190965153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207286441 + ... + 1207286576.

It is an arithmetic number, because the mean of its divisors is an integer number (25353016689).

Almost surely, 2^164190965156 is an apocalyptic number.

It is an amenable number.

164190965156 is a deficient number, since it is larger than the sum of its proper divisors (140045235112).

164190965156 is a wasteful number, since it uses less digits than its factorization.

164190965156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414573038 (or 2414573036 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 164190965156 in words is "one hundred sixty-four billion, one hundred ninety million, nine hundred sixty-five thousand, one hundred fifty-six".