16000905540 has 24 divisors (see below), whose sum is σ = 44802535680. Its totient is φ = 4266908128.

The previous prime is 16000905509. The next prime is 16000905541. The reversal of 16000905540 is 4550900061.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16000905498 and 16000905507.

It is not an unprimeable number, because it can be changed into a prime (16000905541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133340820 + ... + 133340939.

It is an arithmetic number, because the mean of its divisors is an integer number (1866772320).

Almost surely, 2^16000905540 is an apocalyptic number.

16000905540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16000905540 is an abundant number, since it is smaller than the sum of its proper divisors (28801630140).

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

16000905540 is a wasteful number, since it uses less digits than its factorization.

16000905540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266681771 (or 266681769 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 16000905540 in words is "sixteen billion, nine hundred five thousand, five hundred forty".