2015667346564 has 9 divisors (see below), whose sum is σ = 3527422825591. Its totient is φ = 1007832253540.

The previous prime is 2015667346513. The next prime is 2015667346597. The reversal of 2015667346564 is 4656437665102.

The square root of 2015667346564 is 1419742.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2484549 + ... + 3194419.

Almost surely, 2^{2015667346564} is an apocalyptic number.

2015667346564 is the 1419742-nd square number.

It is an amenable number.

2015667346564 is a deficient number, since it is larger than the sum of its proper divisors (1511755479027).

2015667346564 is an frugal number, since it uses more digits than its factorization.

2015667346564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419746 (or 709873 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 55.

The spelling of 2015667346564 in words is "two trillion, fifteen billion, six hundred sixty-seven million, three hundred forty-six thousand, five hundred sixty-four".