19225197516 has 48 divisors (see below), whose sum is σ = 51670900736. Its totient is φ = 5449659264.

The previous prime is 19225197503. The next prime is 19225197517. The reversal of 19225197516 is 61579152291.

It is not an unprimeable number, because it can be changed into a prime (19225197517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890401 + ... + 911736.

Almost surely, 2^19225197516 is an apocalyptic number.

It is an amenable number.

19225197516 is an abundant number, since it is smaller than the sum of its proper divisors (32445703220).

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

19225197516 is a wasteful number, since it uses less digits than its factorization.

19225197516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802278 (or 1802276 counting only the distinct ones).

The product of its digits is 340200, while the sum is 48.

The spelling of 19225197516 in words is "nineteen billion, two hundred twenty-five million, one hundred ninety-seven thousand, five hundred sixteen".