16241651649 has 12 divisors (see below), whose sum is σ = 24694909200. Its totient is φ = 10257885144.

The previous prime is 16241651627. The next prime is 16241651663. The reversal of 16241651649 is 94615614261.

16241651649 is a `hidden beast` number, since 1 + 624 + 1 + 6 + 5 + 16 + 4 + 9 = 666.

It is not a de Polignac number, because 16241651649 - 2⁹ = 16241651137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16241651669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47490039 + ... + 47490380.

It is an arithmetic number, because the mean of its divisors is an integer number (2057909100).

Almost surely, 2^16241651649 is an apocalyptic number.

16241651649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16241651649 is a deficient number, since it is larger than the sum of its proper divisors (8453257551).

16241651649 is a wasteful number, since it uses less digits than its factorization.

16241651649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94980444 (or 94980441 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 16241651649 in words is "sixteen billion, two hundred forty-one million, six hundred fifty-one thousand, six hundred forty-nine".