16111632440 has 32 divisors (see below), whose sum is σ = 36255142080. Its totient is φ = 6443947392.

The previous prime is 16111632437. The next prime is 16111632443. The reversal of 16111632440 is 4423611161.

It is an interprime number because it is at equal distance from previous prime (16111632437) and next prime (16111632443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16111632443) 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, 501089 + ... + 532271.

It is an arithmetic number, because the mean of its divisors is an integer number (1132973190).

Almost surely, 2^16111632440 is an apocalyptic number.

16111632440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16111632440 is an abundant number, since it is smaller than the sum of its proper divisors (20143509640).

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

16111632440 is a wasteful number, since it uses less digits than its factorization.

16111632440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44111 (or 44107 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 16111632440 in words is "sixteen billion, one hundred eleven million, six hundred thirty-two thousand, four hundred forty".