16612211694 has 64 divisors (see below), whose sum is σ = 37116656640. Its totient is φ = 4921499520.

The previous prime is 16612211677. The next prime is 16612211701. The reversal of 16612211694 is 49611221661.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 820149 + ... + 840159.

It is an arithmetic number, because the mean of its divisors is an integer number (579947760).

Almost surely, 2^16612211694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16612211694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18558328320).

16612211694 is an abundant number, since it is smaller than the sum of its proper divisors (20504444946).

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

16612211694 is a wasteful number, since it uses less digits than its factorization.

16612211694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20425.

The product of its digits is 31104, while the sum is 39.

The spelling of 16612211694 in words is "sixteen billion, six hundred twelve million, two hundred eleven thousand, six hundred ninety-four".