16778602002 has 16 divisors (see below), whose sum is σ = 33934252320. Its totient is φ = 5530025952.

The previous prime is 16778601997. The next prime is 16778602103. The reversal of 16778602002 is 20020687761.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15709768 + ... + 15710835.

It is an arithmetic number, because the mean of its divisors is an integer number (2120890770).

Almost surely, 2^16778602002 is an apocalyptic number.

16778602002 is an abundant number, since it is smaller than the sum of its proper divisors (17155650318).

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

16778602002 is a wasteful number, since it uses less digits than its factorization.

16778602002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31420697.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 16778602002 in words is "sixteen billion, seven hundred seventy-eight million, six hundred two thousand, two".