156118209133 has 2 divisors, whose sum is σ = 156118209134. Its totient is φ = 156118209132.

The previous prime is 156118209101. The next prime is 156118209209. The reversal of 156118209133 is 331902811651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149109505609 + 7008703524 = 386147^2 + 83718^2 .

It is a cyclic number.

It is not a de Polignac number, because 156118209133 - 2⁵ = 156118209101 is a prime.

It is a super-2 number, since 2×156118209133² (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 (156118204133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78059104566 + 78059104567.

It is an arithmetic number, because the mean of its divisors is an integer number (78059104567).

Almost surely, 2^156118209133 is an apocalyptic number.

It is an amenable number.

156118209133 is a deficient number, since it is larger than the sum of its proper divisors (1).

156118209133 is an equidigital number, since it uses as much as digits as its factorization.

156118209133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 156118209133 in words is "one hundred fifty-six billion, one hundred eighteen million, two hundred nine thousand, one hundred thirty-three".