158661740155 has 8 divisors (see below), whose sum is σ = 192140823600. Its totient is φ = 125764901856.

The previous prime is 158661740131. The next prime is 158661740177. The reversal of 158661740155 is 551047166851.

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

It is a cyclic number.

It is not a de Polignac number, because 158661740155 - 2²⁷ = 158527522427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158661740099 and 158661740108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145560685 + ... + 145561774.

It is an arithmetic number, because the mean of its divisors is an integer number (24017602950).

Almost surely, 2^158661740155 is an apocalyptic number.

158661740155 is a deficient number, since it is larger than the sum of its proper divisors (33479083445).

158661740155 is a wasteful number, since it uses less digits than its factorization.

158661740155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291122573.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 158661740155 in words is "one hundred fifty-eight billion, six hundred sixty-one million, seven hundred forty thousand, one hundred fifty-five".