1656144354 has 16 divisors (see below), whose sum is σ = 3426505920. Its totient is φ = 533011920.

The previous prime is 1656144323. The next prime is 1656144361. The reversal of 1656144354 is 4534416561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4758862 + ... + 4759209.

It is an arithmetic number, because the mean of its divisors is an integer number (214156620).

Almost surely, 2^1656144354 is an apocalyptic number.

1656144354 is an abundant number, since it is smaller than the sum of its proper divisors (1770361566).

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

1656144354 is a wasteful number, since it uses less digits than its factorization.

1656144354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518105.

The product of its digits is 172800, while the sum is 39.

The square root of 1656144354 is about 40695.7535131124. The cubic root of 1656144354 is about 1183.1307158916.

The spelling of 1656144354 in words is "one billion, six hundred fifty-six million, one hundred forty-four thousand, three hundred fifty-four".