158165950951 has 4 divisors (see below), whose sum is σ = 158671273792. Its totient is φ = 157660628112.

The previous prime is 158165950949. The next prime is 158165950991. The reversal of 158165950951 is 159059561851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158165950951 - 2¹ = 158165950949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158165950892 and 158165950901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158165950931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252660951 + ... + 252661576.

It is an arithmetic number, because the mean of its divisors is an integer number (39667818448).

Almost surely, 2^158165950951 is an apocalyptic number.

158165950951 is a deficient number, since it is larger than the sum of its proper divisors (505322841).

158165950951 is an equidigital number, since it uses as much as digits as its factorization.

158165950951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505322840.

The product of its (nonzero) digits is 2430000, while the sum is 55.

The spelling of 158165950951 in words is "one hundred fifty-eight billion, one hundred sixty-five million, nine hundred fifty thousand, nine hundred fifty-one".