1656102023 has 4 divisors (see below), whose sum is σ = 1671579720. Its totient is φ = 1640624328.

The previous prime is 1656102001. The next prime is 1656102029. The reversal of 1656102023 is 3202016561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1656102023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1656101983 and 1656102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656102029) 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, 7738688 + ... + 7738901.

It is an arithmetic number, because the mean of its divisors is an integer number (417894930).

Almost surely, 2^1656102023 is an apocalyptic number.

1656102023 is a deficient number, since it is larger than the sum of its proper divisors (15477697).

1656102023 is a wasteful number, since it uses less digits than its factorization.

1656102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15477696.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1656102023 is about 40695.2334186696. The cubic root of 1656102023 is about 1183.1206355438.

Adding to 1656102023 its reverse (3202016561), we get a palindrome (4858118584).

The spelling of 1656102023 in words is "one billion, six hundred fifty-six million, one hundred two thousand, twenty-three".