158663780736 has 48 divisors (see below), whose sum is σ = 421471402140. Its totient is φ = 52885325056.

The previous prime is 158663780729. The next prime is 158663780791. The reversal of 158663780736 is 637087366851.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 158663780736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7795405 + ... + 7815731.

Almost surely, 2^158663780736 is an apocalyptic number.

158663780736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

158663780736 is an abundant number, since it is smaller than the sum of its proper divisors (262807621404).

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

158663780736 is an frugal number, since it uses more digits than its factorization.

158663780736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40671 (or 20332 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 158663780736 in words is "one hundred fifty-eight billion, six hundred sixty-three million, seven hundred eighty thousand, seven hundred thirty-six".