15497297196 has 12 divisors (see below), whose sum is σ = 36160360152. Its totient is φ = 5165765728.

The previous prime is 15497297177. The next prime is 15497297197. The reversal of 15497297196 is 69179279451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×15497297196² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15497297197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645720705 + ... + 645720728.

It is an arithmetic number, because the mean of its divisors is an integer number (3013363346).

Almost surely, 2^15497297196 is an apocalyptic number.

It is an amenable number.

15497297196 is an abundant number, since it is smaller than the sum of its proper divisors (20663062956).

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

15497297196 is a wasteful number, since it uses less digits than its factorization.

15497297196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291441440 (or 1291441438 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 60.

The spelling of 15497297196 in words is "fifteen billion, four hundred ninety-seven million, two hundred ninety-seven thousand, one hundred ninety-six".