168256156 has 6 divisors (see below), whose sum is σ = 294448280. Its totient is φ = 84128076.

The previous prime is 168256133. The next prime is 168256163. The reversal of 168256156 is 651652861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21032016 + ... + 21032023.

Almost surely, 2^168256156 is an apocalyptic number.

It is an amenable number.

168256156 is a deficient number, since it is larger than the sum of its proper divisors (126192124).

168256156 is a wasteful number, since it uses less digits than its factorization.

168256156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42064043 (or 42064041 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 168256156 is about 12971.3590652637. The cubic root of 168256156 is about 552.0651353160.

The spelling of 168256156 in words is "one hundred sixty-eight million, two hundred fifty-six thousand, one hundred fifty-six".