16158977 has 2 divisors, whose sum is σ = 16158978. Its totient is φ = 16158976.

The previous prime is 16158971. The next prime is 16159001. The reversal of 16158977 is 77985161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10394176 + 5764801 = 3224^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 16158977 - 2¹⁸ = 15896833 is a prime.

It is a super-2 number, since 2×16158977² = 522225075373058, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16158971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8079488 + 8079489.

It is an arithmetic number, because the mean of its divisors is an integer number (8079489).

Almost surely, 2^16158977 is an apocalyptic number.

It is an amenable number.

16158977 is a deficient number, since it is larger than the sum of its proper divisors (1).

16158977 is an equidigital number, since it uses as much as digits as its factorization.

16158977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 44.

The square root of 16158977 is about 4019.8230060539. The cubic root of 16158977 is about 252.8160379536.

The spelling of 16158977 in words is "sixteen million, one hundred fifty-eight thousand, nine hundred seventy-seven".