1015255401504 has 96 divisors (see below), whose sum is σ = 2806206197760. Its totient is φ = 320504659200.

The previous prime is 1015255401499. The next prime is 1015255401527. The reversal of 1015255401504 is 4051045525101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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, 5733169 + ... + 5907599.

It is an arithmetic number, because the mean of its divisors is an integer number (29231314560).

Almost surely, 2^{1015255401504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015255401504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403103098880).

1015255401504 is an abundant number, since it is smaller than the sum of its proper divisors (1790950796256).

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

1015255401504 is a wasteful number, since it uses less digits than its factorization.

1015255401504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177654 (or 177646 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The spelling of 1015255401504 in words is "one trillion, fifteen billion, two hundred fifty-five million, four hundred one thousand, five hundred four".