15345341941520 has 40 divisors (see below), whose sum is σ = 36548113192920. Its totient is φ = 5988426122240.

The previous prime is 15345341941513. The next prime is 15345341941543. The reversal of 15345341941520 is 2514914354351.

It can be written as a sum of positive squares in 4 ways, for example, as 2409983017744 + 12935358923776 = 1552412^2 + 3596576^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339225675 + ... + 2339232234.

It is an arithmetic number, because the mean of its divisors is an integer number (913702829823).

Almost surely, 2^{15345341941520} is an apocalyptic number.

15345341941520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15345341941520 is an abundant number, since it is smaller than the sum of its proper divisors (21202771251400).

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

15345341941520 is a wasteful number, since it uses less digits than its factorization.

15345341941520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678457963 (or 4678457957 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 15345341941520 in words is "fifteen trillion, three hundred forty-five billion, three hundred forty-one million, nine hundred forty-one thousand, five hundred twenty".