82156967650 has 12 divisors (see below), whose sum is σ = 152811959922. Its totient is φ = 32862787040.

The previous prime is 82156967647. The next prime is 82156967671. The reversal of 82156967650 is 5676965128.

It can be written as a sum of positive squares in 3 ways, for example, as 32361491449 + 49795476201 = 179893^2 + 223149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82156967591 and 82156967600.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 821569627 + ... + 821569726.

Almost surely, 2^82156967650 is an apocalyptic number.

82156967650 is a deficient number, since it is larger than the sum of its proper divisors (70654992272).

82156967650 is a wasteful number, since it uses less digits than its factorization.

82156967650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643139365 (or 1643139360 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 82156967650 in words is "eighty-two billion, one hundred fifty-six million, nine hundred sixty-seven thousand, six hundred fifty".