1515041117261 has 16 divisors (see below), whose sum is σ = 1733376288384. Its totient is φ = 1297181897664.

The previous prime is 1515041117231. The next prime is 1515041117269. The reversal of 1515041117261 is 1627111405151.

It is a cyclic number.

It is not a de Polignac number, because 1515041117261 - 2⁶ = 1515041117197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515041117269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25097831 + ... + 25158123.

It is an arithmetic number, because the mean of its divisors is an integer number (108336018024).

Almost surely, 2^{1515041117261} is an apocalyptic number.

It is an amenable number.

1515041117261 is a deficient number, since it is larger than the sum of its proper divisors (218335171123).

1515041117261 is a wasteful number, since it uses less digits than its factorization.

1515041117261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64180.

The product of its (nonzero) digits is 8400, while the sum is 35.

The spelling of 1515041117261 in words is "one trillion, five hundred fifteen billion, forty-one million, one hundred seventeen thousand, two hundred sixty-one".