1656653142 has 8 divisors (see below), whose sum is σ = 3313306296. Its totient is φ = 552217712.

The previous prime is 1656653107. The next prime is 1656653143. The reversal of 1656653142 is 2413566561.

It is a sphenic number, since it is the product of 3 distinct primes.

1656653142 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1656653142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656653143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138054423 + ... + 138054434.

It is an arithmetic number, because the mean of its divisors is an integer number (414163287).

Almost surely, 2^1656653142 is an apocalyptic number.

1656653142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1656653142 is a wasteful number, since it uses less digits than its factorization.

1656653142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276108862.

The product of its digits is 129600, while the sum is 39.

The square root of 1656653142 is about 40702.0041521299. The cubic root of 1656653142 is about 1183.2518609428.

The spelling of 1656653142 in words is "one billion, six hundred fifty-six million, six hundred fifty-three thousand, one hundred forty-two".