158788021650 has 48 divisors (see below), whose sum is σ = 394170084000. Its totient is φ = 42303064960.

The previous prime is 158788021649. The next prime is 158788021663. The reversal of 158788021650 is 56120887851.

It is a junction number, because it is equal to n+sod(n) for n = 158788021593 and 158788021602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347220 + ... + 661919.

It is an arithmetic number, because the mean of its divisors is an integer number (8211876750).

Almost surely, 2^158788021650 is an apocalyptic number.

158788021650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158788021650 is an abundant number, since it is smaller than the sum of its proper divisors (235382062350).

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

158788021650 is a wasteful number, since it uses less digits than its factorization.

158788021650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010203 (or 1010198 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 158788021650 in words is "one hundred fifty-eight billion, seven hundred eighty-eight million, twenty-one thousand, six hundred fifty".