1656284493 has 16 divisors (see below), whose sum is σ = 2223498816. Its totient is φ = 1096656000.

The previous prime is 1656284479. The next prime is 1656284501. The reversal of 1656284493 is 3944826561.

It is not a de Polignac number, because 1656284493 - 2⁴ = 1656284477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656284423) 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, 277921 + ... + 283817.

It is an arithmetic number, because the mean of its divisors is an integer number (138968676).

Almost surely, 2^1656284493 is an apocalyptic number.

It is an amenable number.

1656284493 is a deficient number, since it is larger than the sum of its proper divisors (567214323).

1656284493 is a wasteful number, since it uses less digits than its factorization.

1656284493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524.

The product of its digits is 1244160, while the sum is 48.

The square root of 1656284493 is about 40697.4752656722. The cubic root of 1656284493 is about 1183.1640861870.

The spelling of 1656284493 in words is "one billion, six hundred fifty-six million, two hundred eighty-four thousand, four hundred ninety-three".