197431220316 has 24 divisors (see below), whose sum is σ = 502552197504. Its totient is φ = 59827642480.

The previous prime is 197431220263. The next prime is 197431220339. The reversal of 197431220316 is 613022134791.

It is a super-2 number, since 2×197431220316² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747845400 + ... + 747845663.

It is an arithmetic number, because the mean of its divisors is an integer number (20939674896).

Almost surely, 2^197431220316 is an apocalyptic number.

It is an amenable number.

197431220316 is an abundant number, since it is smaller than the sum of its proper divisors (305120977188).

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

197431220316 is a wasteful number, since it uses less digits than its factorization.

197431220316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495691081 (or 1495691079 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 197431220316 in words is "one hundred ninety-seven billion, four hundred thirty-one million, two hundred twenty thousand, three hundred sixteen".