15001765144225 has 12 divisors (see below), whose sum is σ = 18602293327920. Its totient is φ = 12001344664400.

The previous prime is 15001765144211. The next prime is 15001765144313. The reversal of 15001765144225 is 52244156710051.

It is a happy number.

It is not a de Polignac number, because 15001765144225 - 2⁵ = 15001765144193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3119430 + ... + 6303520.

It is an arithmetic number, because the mean of its divisors is an integer number (1550191110660).

Almost surely, 2^{15001765144225} is an apocalyptic number.

It is an amenable number.

15001765144225 is a deficient number, since it is larger than the sum of its proper divisors (3600528183695).

15001765144225 is a wasteful number, since it uses less digits than its factorization.

15001765144225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372560 (or 3372555 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 15001765144225 in words is "fifteen trillion, one billion, seven hundred sixty-five million, one hundred forty-four thousand, two hundred twenty-five".