154664439076 has 45 divisors (see below), whose sum is σ = 315833144081. Its totient is φ = 66268242096.

The previous prime is 154664439071. The next prime is 154664439107. The reversal of 154664439076 is 670934466451.

The square root of 154664439076 is 393274.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 129708022500 + 24956416576 = 360150^2 + 157976^2 .

It is not an unprimeable number, because it can be changed into a prime (154664439071) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 38538846 + ... + 38542858.

Almost surely, 2^154664439076 is an apocalyptic number.

154664439076 is the 393274-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154664439076

154664439076 is an abundant number, since it is smaller than the sum of its proper divisors (161168705005).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154664439076 is an frugal number, since it uses more digits than its factorization.

154664439076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058 (or 4022 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 154664439076 in words is "one hundred fifty-four billion, six hundred sixty-four million, four hundred thirty-nine thousand, seventy-six".