16115651 has 8 divisors (see below), whose sum is σ = 16615008. Its totient is φ = 15628200.

The previous prime is 16115639. The next prime is 16115653. The reversal of 16115651 is 15651161.

It is not a de Polignac number, because 16115651 - 2⁶ = 16115587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16115651.

It is not an unprimeable number, because it can be changed into a prime (16115653) 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, 226946 + ... + 227016.

It is an arithmetic number, because the mean of its divisors is an integer number (2076876).

Almost surely, 2^16115651 is an apocalyptic number.

16115651 is a deficient number, since it is larger than the sum of its proper divisors (499357).

16115651 is an frugal number, since it uses more digits than its factorization.

16115651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 132 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

The square root of 16115651 is about 4014.4303456406. The cubic root of 16115651 is about 252.5898827148.

The spelling of 16115651 in words is "sixteen million, one hundred fifteen thousand, six hundred fifty-one".