158011815050 has 24 divisors (see below), whose sum is σ = 311190329196. Its totient is φ = 59486800640.

The previous prime is 158011815047. The next prime is 158011815079. The reversal of 158011815050 is 50518110851.

It is a Cunningham number, because it is equal to 397507²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 123019249081 + 34992565969 = 350741^2 + 187063^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 158011815050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92947277 + ... + 92948976.

Almost surely, 2^158011815050 is an apocalyptic number.

158011815050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158011815050 is a deficient number, since it is larger than the sum of its proper divisors (153178514146).

158011815050 is a wasteful number, since it uses less digits than its factorization.

158011815050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185896282 (or 185896277 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 35.

The spelling of 158011815050 in words is "one hundred fifty-eight billion, eleven million, eight hundred fifteen thousand, fifty".