158646503085 has 64 divisors (see below), whose sum is σ = 294630469632. Its totient is φ = 71392121856.

The previous prime is 158646503083. The next prime is 158646503101. The reversal of 158646503085 is 580305646851.

It is a happy number.

It is not a de Polignac number, because 158646503085 - 2¹ = 158646503083 is a prime.

It is a super-4 number, since 4×158646503085⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158646503083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11298229 + ... + 11312261.

It is an arithmetic number, because the mean of its divisors is an integer number (4603601088).

Almost surely, 2^158646503085 is an apocalyptic number.

158646503085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158646503085 is a deficient number, since it is larger than the sum of its proper divisors (135983966547).

158646503085 is a wasteful number, since it uses less digits than its factorization.

158646503085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15722.

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 158646503085 in words is "one hundred fifty-eight billion, six hundred forty-six million, five hundred three thousand, eighty-five".