154287990164 has 96 divisors (see below), whose sum is σ = 343551559680. Its totient is φ = 58886755200.

The previous prime is 154287990113. The next prime is 154287990169. The reversal of 154287990164 is 461099782451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154287990169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3410807 + ... + 3455745.

It is an arithmetic number, because the mean of its divisors is an integer number (3578662080).

Almost surely, 2^154287990164 is an apocalyptic number.

154287990164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154287990164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171775779840).

154287990164 is an abundant number, since it is smaller than the sum of its proper divisors (189263569516).

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

154287990164 is a wasteful number, since it uses less digits than its factorization.

154287990164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45189 (or 45187 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 154287990164 in words is "one hundred fifty-four billion, two hundred eighty-seven million, nine hundred ninety thousand, one hundred sixty-four".