5166138154 has 8 divisors (see below), whose sum is σ = 7749697860. Its totient is φ = 2582905536.

The previous prime is 5166138119. The next prime is 5166138157. The reversal of 5166138154 is 4518316615.

It can be written as a sum of positive squares in 2 ways, for example, as 5160267225 + 5870929 = 71835^2 + 2423^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5166138157) 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, 37489 + ... + 108340.

Almost surely, 2^5166138154 is an apocalyptic number.

5166138154 is a deficient number, since it is larger than the sum of its proper divisors (2583559706).

5166138154 is a wasteful number, since it uses less digits than its factorization.

5166138154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163544.

The product of its digits is 86400, while the sum is 40.

The square root of 5166138154 is about 71875.8523705980. The cubic root of 5166138154 is about 1728.7094470318.

The spelling of 5166138154 in words is "five billion, one hundred sixty-six million, one hundred thirty-eight thousand, one hundred fifty-four".