16545739078 has 16 divisors (see below), whose sum is σ = 27084974400. Its totient is φ = 7517977000.

The previous prime is 16545739033. The next prime is 16545739117. The reversal of 16545739078 is 87093754561.

It is a super-2 number, since 2×16545739078² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79948 + ... + 198703.

It is an arithmetic number, because the mean of its divisors is an integer number (1692810900).

Almost surely, 2^16545739078 is an apocalyptic number.

16545739078 is a deficient number, since it is larger than the sum of its proper divisors (10539235322).

16545739078 is a wasteful number, since it uses less digits than its factorization.

16545739078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281363.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 16545739078 in words is "sixteen billion, five hundred forty-five million, seven hundred thirty-nine thousand, seventy-eight".