163651156 has 6 divisors (see below), whose sum is σ = 286389530. Its totient is φ = 81825576.

The previous prime is 163651127. The next prime is 163651157. The reversal of 163651156 is 651156361.

It can be written as a sum of positive squares in only one way, i.e., 85858756 + 77792400 = 9266^2 + 8820^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163651157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20456391 + ... + 20456398.

Almost surely, 2^163651156 is an apocalyptic number.

It is an amenable number.

163651156 is a deficient number, since it is larger than the sum of its proper divisors (122738374).

163651156 is a wasteful number, since it uses less digits than its factorization.

163651156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40912793 (or 40912791 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 163651156 is about 12792.6211543999. The cubic root of 163651156 is about 546.9819885851.

The spelling of 163651156 in words is "one hundred sixty-three million, six hundred fifty-one thousand, one hundred fifty-six".