15153332261 has 2 divisors, whose sum is σ = 15153332262. Its totient is φ = 15153332260.

The previous prime is 15153332221. The next prime is 15153332267. The reversal of 15153332261 is 16223335151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14101562500 + 1051769761 = 118750^2 + 32431^2 .

It is an emirp because it is prime and its reverse (16223335151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15153332261 is a prime.

It is a super-2 number, since 2×15153332261² (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 (15153332267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7576666130 + 7576666131.

It is an arithmetic number, because the mean of its divisors is an integer number (7576666131).

Almost surely, 2^15153332261 is an apocalyptic number.

It is an amenable number.

15153332261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15153332261 is an equidigital number, since it uses as much as digits as its factorization.

15153332261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The spelling of 15153332261 in words is "fifteen billion, one hundred fifty-three million, three hundred thirty-two thousand, two hundred sixty-one".