16716400157 has 8 divisors (see below), whose sum is σ = 17127132792. Its totient is φ = 16305811200.

The previous prime is 16716400133. The next prime is 16716400171. The reversal of 16716400157 is 75100461761.

It can be written as a sum of positive squares in 4 ways, for example, as 103510276 + 16612889881 = 10174^2 + 128891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16716400157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16716400157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16716400177) 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, 222107 + ... + 287687.

It is an arithmetic number, because the mean of its divisors is an integer number (2140891599).

Almost surely, 2^16716400157 is an apocalyptic number.

It is an amenable number.

16716400157 is a deficient number, since it is larger than the sum of its proper divisors (410732635).

16716400157 is an equidigital number, since it uses as much as digits as its factorization.

16716400157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71839.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 16716400157 in words is "sixteen billion, seven hundred sixteen million, four hundred thousand, one hundred fifty-seven".