1653556674 has 32 divisors (see below), whose sum is σ = 4123155456. Its totient is φ = 429495120.

The previous prime is 1653556661. The next prime is 1653556693. The reversal of 1653556674 is 4766553561.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789102 + ... + 1790025.

It is an arithmetic number, because the mean of its divisors is an integer number (128848608).

Almost surely, 2^1653556674 is an apocalyptic number.

1653556674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1653556674 is an abundant number, since it is smaller than the sum of its proper divisors (2469598782).

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

1653556674 is a wasteful number, since it uses less digits than its factorization.

1653556674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579150.

The product of its digits is 2268000, while the sum is 48.

The square root of 1653556674 is about 40663.9480867267. The cubic root of 1653556674 is about 1182.5141916123.

The spelling of 1653556674 in words is "one billion, six hundred fifty-three million, five hundred fifty-six thousand, six hundred seventy-four".