16961916942 has 80 divisors (see below), whose sum is σ = 38383207632. Its totient is φ = 5598253440.

The previous prime is 16961916929. The next prime is 16961916943. The reversal of 16961916942 is 24961916961.

16961916942 is a `hidden beast` number, since 1 + 6 + 9 + 619 + 16 + 9 + 4 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16961916943) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18101898 + ... + 18102834.

Almost surely, 2^16961916942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16961916942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19191603816).

16961916942 is an abundant number, since it is smaller than the sum of its proper divisors (21421290690).

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

16961916942 is a wasteful number, since it uses less digits than its factorization.

16961916942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1926 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 16961916942 in words is "sixteen billion, nine hundred sixty-one million, nine hundred sixteen thousand, nine hundred forty-two".