16101451640 has 64 divisors (see below), whose sum is σ = 36872064000. Its totient is φ = 6326305920.

The previous prime is 16101451631. The next prime is 16101451649. The reversal of 16101451640 is 4615410161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16101451631) and next prime (16101451649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16101451649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4432625 + ... + 4436255.

It is an arithmetic number, because the mean of its divisors is an integer number (576126000).

Almost surely, 2^16101451640 is an apocalyptic number.

16101451640 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 16101451640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18436032000).

16101451640 is an abundant number, since it is smaller than the sum of its proper divisors (20770612360).

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

16101451640 is a wasteful number, since it uses less digits than its factorization.

16101451640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580 (or 5576 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 16101451640 in words is "sixteen billion, one hundred one million, four hundred fifty-one thousand, six hundred forty".