16141378978 has 16 divisors (see below), whose sum is σ = 26594493120. Its totient is φ = 7313484816.

The previous prime is 16141378969. The next prime is 16141378991. The reversal of 16141378978 is 87987314161.

It is a super-2 number, since 2×16141378978² (a number of 21 digits) contains 22 as substring.

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, 9233325 + ... + 9235072.

It is an arithmetic number, because the mean of its divisors is an integer number (1662155820).

Almost surely, 2^16141378978 is an apocalyptic number.

16141378978 is a deficient number, since it is larger than the sum of its proper divisors (10453114142).

16141378978 is a wasteful number, since it uses less digits than its factorization.

16141378978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18468441.

The product of its digits is 2032128, while the sum is 55.

The spelling of 16141378978 in words is "sixteen billion, one hundred forty-one million, three hundred seventy-eight thousand, nine hundred seventy-eight".