157223335982 has 4 divisors (see below), whose sum is σ = 235835003976. Its totient is φ = 78611667990.

The previous prime is 157223335861. The next prime is 157223336021. The reversal of 157223335982 is 289533322751.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157223335982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39305833994 + ... + 39305833997.

It is an arithmetic number, because the mean of its divisors is an integer number (58958750994).

Almost surely, 2^157223335982 is an apocalyptic number.

157223335982 is a deficient number, since it is larger than the sum of its proper divisors (78611667994).

157223335982 is an equidigital number, since it uses as much as digits as its factorization.

157223335982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78611667993.

The product of its digits is 2721600, while the sum is 50.

The spelling of 157223335982 in words is "one hundred fifty-seven billion, two hundred twenty-three million, three hundred thirty-five thousand, nine hundred eighty-two".