99613487796157 has 2 divisors, whose sum is σ = 99613487796158. Its totient is φ = 99613487796156.

The previous prime is 99613487796139. The next prime is 99613487796209. The reversal of 99613487796157 is 75169778431699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78437485972036 + 21176001824121 = 8856494^2 + 4601739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99613487796157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99613487796457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49806743898078 + 49806743898079.

It is an arithmetic number, because the mean of its divisors is an integer number (49806743898079).

Almost surely, 2^{99613487796157} is an apocalyptic number.

It is an amenable number.

99613487796157 is a deficient number, since it is larger than the sum of its proper divisors (1).

99613487796157 is an equidigital number, since it uses as much as digits as its factorization.

99613487796157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320812160, while the sum is 82.

The spelling of 99613487796157 in words is "ninety-nine trillion, six hundred thirteen billion, four hundred eighty-seven million, seven hundred ninety-six thousand, one hundred fifty-seven".