1655449674 has 16 divisors (see below), whose sum is σ = 3316850208. Its totient is φ = 550824752.

The previous prime is 1655449637. The next prime is 1655449687. The reversal of 1655449674 is 4769445561.

It is a happy number.

It is a super-3 number, since 3×1655449674³ (a number of 29 digits) contains 333 as substring.

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, 244332 + ... + 251015.

It is an arithmetic number, because the mean of its divisors is an integer number (207303138).

Almost surely, 2^1655449674 is an apocalyptic number.

1655449674 is an abundant number, since it is smaller than the sum of its proper divisors (1661400534).

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

1655449674 is a wasteful number, since it uses less digits than its factorization.

1655449674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495909.

The product of its digits is 3628800, while the sum is 51.

The square root of 1655449674 is about 40687.2175750567. The cubic root of 1655449674 is about 1182.9652689229.

The spelling of 1655449674 in words is "one billion, six hundred fifty-five million, four hundred forty-nine thousand, six hundred seventy-four".