12561326110510 has 32 divisors (see below), whose sum is σ = 22627771452000. Its totient is φ = 5020667729280.

The previous prime is 12561326110469. The next prime is 12561326110649. The reversal of 12561326110510 is 1501162316521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341498320 + ... + 341535100.

It is an arithmetic number, because the mean of its divisors is an integer number (707117857875).

Almost surely, 2^{12561326110510} is an apocalyptic number.

12561326110510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12561326110510 is a deficient number, since it is larger than the sum of its proper divisors (10066445341490).

12561326110510 is a wasteful number, since it uses less digits than its factorization.

12561326110510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62116.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 12561326110510 in words is "twelve trillion, five hundred sixty-one billion, three hundred twenty-six million, one hundred ten thousand, five hundred ten".