158664815402 has 8 divisors (see below), whose sum is σ = 250523392800. Its totient is φ = 75157017804.

The previous prime is 158664815357. The next prime is 158664815423. The reversal of 158664815402 is 204518466851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087694902 + ... + 2087694977.

It is an arithmetic number, because the mean of its divisors is an integer number (31315424100).

Almost surely, 2^158664815402 is an apocalyptic number.

158664815402 is a deficient number, since it is larger than the sum of its proper divisors (91858577398).

158664815402 is a wasteful number, since it uses less digits than its factorization.

158664815402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175389900.

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 158664815402 in words is "one hundred fifty-eight billion, six hundred sixty-four million, eight hundred fifteen thousand, four hundred two".