13155650501 has 4 divisors (see below), whose sum is σ = 15035029152. Its totient is φ = 11276271852.

The previous prime is 13155650489. The next prime is 13155650507. The reversal of 13155650501 is 10505655131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13155650501 - 2³⁰ = 12081908677 is a prime.

It is a super-2 number, since 2×13155650501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155650507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939689315 + ... + 939689328.

It is an arithmetic number, because the mean of its divisors is an integer number (3758757288).

Almost surely, 2^13155650501 is an apocalyptic number.

It is an amenable number.

13155650501 is a deficient number, since it is larger than the sum of its proper divisors (1879378651).

13155650501 is an equidigital number, since it uses as much as digits as its factorization.

13155650501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879378650.

The product of its (nonzero) digits is 11250, while the sum is 32.

The spelling of 13155650501 in words is "thirteen billion, one hundred fifty-five million, six hundred fifty thousand, five hundred one".