616666667890 has 32 divisors (see below), whose sum is σ = 1366153850880. Its totient is φ = 195164835264.

The previous prime is 616666667879. The next prime is 616666667921. The reversal of 616666667890 is 98766666616.

616666667890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338826930 + ... + 338828749.

It is an arithmetic number, because the mean of its divisors is an integer number (42692307840).

Almost surely, 2^616666667890 is an apocalyptic number.

616666667890 is an abundant number, since it is smaller than the sum of its proper divisors (749487182990).

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

616666667890 is a wasteful number, since it uses less digits than its factorization.

616666667890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677655706.

The product of its (nonzero) digits is 141087744, while the sum is 67.

The spelling of 616666667890 in words is "six hundred sixteen billion, six hundred sixty-six million, six hundred sixty-seven thousand, eight hundred ninety".