15210452051561 has 16 divisors (see below), whose sum is σ = 16448227635840. Its totient is φ = 13982389171200.

The previous prime is 15210452051533. The next prime is 15210452051573. The reversal of 15210452051561 is 16515025401251.

It is a cyclic number.

It is not a de Polignac number, because 15210452051561 - 2³⁰ = 15209378309737 is a prime.

It is a super-2 number, since 2×15210452051561² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15210452053561) 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, 9585161 + ... + 11058761.

It is an arithmetic number, because the mean of its divisors is an integer number (1028014227240).

Almost surely, 2^{15210452051561} is an apocalyptic number.

It is an amenable number.

15210452051561 is a deficient number, since it is larger than the sum of its proper divisors (1237775584279).

15210452051561 is a wasteful number, since it uses less digits than its factorization.

15210452051561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476896.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 15210452051561 in words is "fifteen trillion, two hundred ten billion, four hundred fifty-two million, fifty-one thousand, five hundred sixty-one".