15166061501 has 2 divisors, whose sum is σ = 15166061502. Its totient is φ = 15166061500.

The previous prime is 15166061447. The next prime is 15166061513. The reversal of 15166061501 is 10516066151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14417765476 + 748296025 = 120074^2 + 27355^2 .

It is an emirp because it is prime and its reverse (10516066151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15166061501 is a prime.

It is a super-2 number, since 2×15166061501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15166081501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7583030750 + 7583030751.

It is an arithmetic number, because the mean of its divisors is an integer number (7583030751).

Almost surely, 2^15166061501 is an apocalyptic number.

It is an amenable number.

15166061501 is a deficient number, since it is larger than the sum of its proper divisors (1).

15166061501 is an equidigital number, since it uses as much as digits as its factorization.

15166061501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 15166061501 in words is "fifteen billion, one hundred sixty-six million, sixty-one thousand, five hundred one".