15315445002 has 64 divisors (see below), whose sum is σ = 36958610304. Its totient is φ = 4168247040.

The previous prime is 15315444971. The next prime is 15315445021. The reversal of 15315445002 is 20054451351.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209473 + ... + 272964.

It is an arithmetic number, because the mean of its divisors is an integer number (577478286).

Almost surely, 2^15315445002 is an apocalyptic number.

15315445002 is an abundant number, since it is smaller than the sum of its proper divisors (21643165302).

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

15315445002 is a wasteful number, since it uses less digits than its factorization.

15315445002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482503.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 15315445002 its reverse (20054451351), we get a palindrome (35369896353).

The spelling of 15315445002 in words is "fifteen billion, three hundred fifteen million, four hundred forty-five thousand, two".