1855354656 has 48 divisors (see below), whose sum is σ = 4917616704. Its totient is φ = 612443904.

The previous prime is 1855354607. The next prime is 1855354679. The reversal of 1855354656 is 6564535581.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 83931 + ... + 103706.

It is an arithmetic number, because the mean of its divisors is an integer number (102450348).

Almost surely, 2^1855354656 is an apocalyptic number.

1855354656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1855354656 is an abundant number, since it is smaller than the sum of its proper divisors (3062262048).

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

1855354656 is a wasteful number, since it uses less digits than its factorization.

1855354656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187753 (or 187745 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The square root of 1855354656 is about 43073.8279701259. The cubic root of 1855354656 is about 1228.7842783294.

The spelling of 1855354656 in words is "one billion, eight hundred fifty-five million, three hundred fifty-four thousand, six hundred fifty-six".