156532050197 has 2 divisors, whose sum is σ = 156532050198. Its totient is φ = 156532050196.

The previous prime is 156532050193. The next prime is 156532050211. The reversal of 156532050197 is 791050235651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156510436996 + 21613201 = 395614^2 + 4649^2 .

It is a cyclic number.

It is not a de Polignac number, because 156532050197 - 2² = 156532050193 is a prime.

It is a super-2 number, since 2×156532050197² (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 (156532050193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78266025098 + 78266025099.

It is an arithmetic number, because the mean of its divisors is an integer number (78266025099).

Almost surely, 2^156532050197 is an apocalyptic number.

It is an amenable number.

156532050197 is a deficient number, since it is larger than the sum of its proper divisors (1).

156532050197 is an equidigital number, since it uses as much as digits as its factorization.

156532050197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 156532050197 in words is "one hundred fifty-six billion, five hundred thirty-two million, fifty thousand, one hundred ninety-seven".