16061501500 has 48 divisors (see below), whose sum is σ = 38267270496. Its totient is φ = 5840544000.

The previous prime is 16061501479. The next prime is 16061501527. The reversal of 16061501500 is 510516061.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454637 + ... + 1465636.

It is an arithmetic number, because the mean of its divisors is an integer number (797234802).

Almost surely, 2^16061501500 is an apocalyptic number.

16061501500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16061501500 is an abundant number, since it is smaller than the sum of its proper divisors (22205768996).

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

16061501500 is a wasteful number, since it uses less digits than its factorization.

16061501500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920303 (or 2920291 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 16061501500 in words is "sixteen billion, sixty-one million, five hundred one thousand, five hundred".