15223661434461 has 8 divisors (see below), whose sum is σ = 20310846375744. Its totient is φ = 10142792058080.

The previous prime is 15223661434453. The next prime is 15223661434477. The reversal of 15223661434461 is 16443416632251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15223661434461 - 2³ = 15223661434453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15223661434461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15223661434441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578885600 + ... + 1578895241.

It is an arithmetic number, because the mean of its divisors is an integer number (2538855796968).

Almost surely, 2^{15223661434461} is an apocalyptic number.

It is an amenable number.

15223661434461 is a deficient number, since it is larger than the sum of its proper divisors (5087184941283).

15223661434461 is a wasteful number, since it uses less digits than its factorization.

15223661434461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157782451.

The product of its digits is 2488320, while the sum is 48.

The spelling of 15223661434461 in words is "fifteen trillion, two hundred twenty-three billion, six hundred sixty-one million, four hundred thirty-four thousand, four hundred sixty-one".