16131197157242 has 32 divisors (see below), whose sum is σ = 26104420971072. Its totient is φ = 7447669675264.

The previous prime is 16131197157227. The next prime is 16131197157287. The reversal of 16131197157242 is 24275179113161.

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, 59480273 + ... + 59750859.

It is an arithmetic number, because the mean of its divisors is an integer number (815763155346).

Almost surely, 2^{16131197157242} is an apocalyptic number.

16131197157242 is a deficient number, since it is larger than the sum of its proper divisors (9973223813830).

16131197157242 is a wasteful number, since it uses less digits than its factorization.

16131197157242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303742.

The product of its digits is 635040, while the sum is 50.

The spelling of 16131197157242 in words is "sixteen trillion, one hundred thirty-one billion, one hundred ninety-seven million, one hundred fifty-seven thousand, two hundred forty-two".