15232555361561 has 16 divisors (see below), whose sum is σ = 15861496593600. Its totient is φ = 14610661305408.

The previous prime is 15232555361557. The next prime is 15232555361591. The reversal of 15232555361561 is 16516355523251.

It is a happy number.

15232555361561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 15232555361561 - 2² = 15232555361557 is a prime.

It is a super-3 number, since 3×15232555361561³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (15232555361591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5110610 + ... + 7522196.

It is an arithmetic number, because the mean of its divisors is an integer number (991343537100).

Almost surely, 2^{15232555361561} is an apocalyptic number.

It is an amenable number.

15232555361561 is a deficient number, since it is larger than the sum of its proper divisors (628941232039).

15232555361561 is a wasteful number, since it uses less digits than its factorization.

15232555361561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413048.

The product of its digits is 4050000, while the sum is 50.

The spelling of 15232555361561 in words is "fifteen trillion, two hundred thirty-two billion, five hundred fifty-five million, three hundred sixty-one thousand, five hundred sixty-one".