16958402042 has 12 divisors (see below), whose sum is σ = 26073169998. Its totient is φ = 8272389600.

The previous prime is 16958402017. The next prime is 16958402053. The reversal of 16958402042 is 24020485961.

It can be written as a sum of positive squares in 3 ways, for example, as 7811201161 + 9147200881 = 88381^2 + 95641^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2518709 + ... + 2525432.

Almost surely, 2^16958402042 is an apocalyptic number.

16958402042 is a deficient number, since it is larger than the sum of its proper divisors (9114767956).

16958402042 is an equidigital number, since it uses as much as digits as its factorization.

16958402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044225 (or 5044184 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 16958402042 in words is "sixteen billion, nine hundred fifty-eight million, four hundred two thousand, forty-two".