16125154540 has 72 divisors (see below), whose sum is σ = 37286415936. Its totient is φ = 5853408000.

The previous prime is 16125154523. The next prime is 16125154541. The reversal of 16125154540 is 4545152161.

It is a super-2 number, since 2×16125154540² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16125154496 and 16125154505.

It is not an unprimeable number, because it can be changed into a prime (16125154541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1448877 + ... + 1459963.

It is an arithmetic number, because the mean of its divisors is an integer number (517866888).

Almost surely, 2^16125154540 is an apocalyptic number.

16125154540 is a gapful number since it is divisible by the number (10) 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 16125154540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18643207968).

16125154540 is an abundant number, since it is smaller than the sum of its proper divisors (21161261396).

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

16125154540 is a wasteful number, since it uses less digits than its factorization.

16125154540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11719 (or 11706 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 16125154540 in words is "sixteen billion, one hundred twenty-five million, one hundred fifty-four thousand, five hundred forty".