15161261565210 has 16 divisors (see below), whose sum is σ = 36387027756576. Its totient is φ = 4043003084048.

The previous prime is 15161261565187. The next prime is 15161261565211. The reversal of 15161261565210 is 1256516216151.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15161261565211) 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, 252687692724 + ... + 252687692783.

It is an arithmetic number, because the mean of its divisors is an integer number (2274189234786).

Almost surely, 2^{15161261565210} is an apocalyptic number.

15161261565210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15161261565210 is an abundant number, since it is smaller than the sum of its proper divisors (21225766191366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15161261565210 is a wasteful number, since it uses less digits than its factorization.

15161261565210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505375385517.

The product of its (nonzero) digits is 108000, while the sum is 42.

The spelling of 15161261565210 in words is "fifteen trillion, one hundred sixty-one billion, two hundred sixty-one million, five hundred sixty-five thousand, two hundred ten".