1656196894 has 32 divisors (see below), whose sum is σ = 2772766080. Its totient is φ = 735540000.

The previous prime is 1656196891. The next prime is 1656196937. The reversal of 1656196894 is 4986916561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656196891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289837 + ... + 295495.

It is an arithmetic number, because the mean of its divisors is an integer number (86648940).

Almost surely, 2^1656196894 is an apocalyptic number.

1656196894 is a deficient number, since it is larger than the sum of its proper divisors (1116569186).

1656196894 is a wasteful number, since it uses less digits than its factorization.

1656196894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976.

The product of its digits is 2799360, while the sum is 55.

The square root of 1656196894 is about 40696.3990298896. The cubic root of 1656196894 is about 1183.1432270857.

The spelling of 1656196894 in words is "one billion, six hundred fifty-six million, one hundred ninety-six thousand, eight hundred ninety-four".