1256416604 has 6 divisors (see below), whose sum is σ = 2198729064. Its totient is φ = 628208300.

The previous prime is 1256416571. The next prime is 1256416663. The reversal of 1256416604 is 4066146521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157052072 + ... + 157052079.

It is an arithmetic number, because the mean of its divisors is an integer number (366454844).

Almost surely, 2^1256416604 is an apocalyptic number.

It is an amenable number.

1256416604 is a deficient number, since it is larger than the sum of its proper divisors (942312460).

1256416604 is a wasteful number, since it uses less digits than its factorization.

1256416604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314104155 (or 314104153 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1256416604 is about 35445.9673869962. The cubic root of 1256416604 is about 1079.0574206220.

The spelling of 1256416604 in words is "one billion, two hundred fifty-six million, four hundred sixteen thousand, six hundred four".