855613345 has 16 divisors (see below), whose sum is σ = 1057354560. Its totient is φ = 664179264.

The previous prime is 855613331. The next prime is 855613391. The reversal of 855613345 is 543316558.

It is a cyclic number.

It is not a de Polignac number, because 855613345 - 2¹⁷ = 855482273 is a prime.

It is a super-2 number, since 2×855613345² = 1464148392284178050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855613298 and 855613307.

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, 64014 + ... + 76216.

It is an arithmetic number, because the mean of its divisors is an integer number (66084660).

Almost surely, 2^855613345 is an apocalyptic number.

It is an amenable number.

855613345 is a deficient number, since it is larger than the sum of its proper divisors (201741215).

855613345 is a wasteful number, since it uses less digits than its factorization.

855613345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12624.

The product of its digits is 216000, while the sum is 40.

The square root of 855613345 is about 29250.8691323865. The cubic root of 855613345 is about 949.3488964206.

The spelling of 855613345 in words is "eight hundred fifty-five million, six hundred thirteen thousand, three hundred forty-five".