156959900749 has 2 divisors, whose sum is σ = 156959900750. Its totient is φ = 156959900748.

The previous prime is 156959900731. The next prime is 156959900767. The reversal of 156959900749 is 947009959651.

It is a balanced prime because it is at equal distance from previous prime (156959900731) and next prime (156959900767).

It can be written as a sum of positive squares in only one way, i.e., 153336462724 + 3623438025 = 391582^2 + 60195^2 .

It is a cyclic number.

It is not a de Polignac number, because 156959900749 - 2¹¹ = 156959898701 is a prime.

It is a super-2 number, since 2×156959900749² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156959900719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78479950374 + 78479950375.

It is an arithmetic number, because the mean of its divisors is an integer number (78479950375).

Almost surely, 2^156959900749 is an apocalyptic number.

It is an amenable number.

156959900749 is a deficient number, since it is larger than the sum of its proper divisors (1).

156959900749 is an equidigital number, since it uses as much as digits as its factorization.

156959900749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27556200, while the sum is 64.

The spelling of 156959900749 in words is "one hundred fifty-six billion, nine hundred fifty-nine million, nine hundred thousand, seven hundred forty-nine".