16401091630 has 32 divisors (see below), whose sum is σ = 36806607360. Its totient is φ = 5112028320.

The previous prime is 16401091613. The next prime is 16401091667. The reversal of 16401091630 is 3619010461.

16401091630 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16401091592 and 16401091601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10649290 + ... + 10650829.

It is an arithmetic number, because the mean of its divisors is an integer number (1150206480).

Almost surely, 2^16401091630 is an apocalyptic number.

16401091630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16401091630 is an abundant number, since it is smaller than the sum of its proper divisors (20405515730).

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

16401091630 is a wasteful number, since it uses less digits than its factorization.

16401091630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21300144.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 16401091630 in words is "sixteen billion, four hundred one million, ninety-one thousand, six hundred thirty".