1670258655 has 48 divisors (see below), whose sum is σ = 3122988960. Its totient is φ = 820917504.

The previous prime is 1670258651. The next prime is 1670258663. The reversal of 1670258655 is 5568520761.

1670258655 is a `hidden beast` number, since 1 + 67 + 0 + 2 + 586 + 5 + 5 = 666.

It is not a de Polignac number, because 1670258655 - 2² = 1670258651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1670258655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670258651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 412752 + ... + 416778.

It is an arithmetic number, because the mean of its divisors is an integer number (65062270).

Almost surely, 2^1670258655 is an apocalyptic number.

1670258655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1670258655 is a deficient number, since it is larger than the sum of its proper divisors (1452730305).

1670258655 is a wasteful number, since it uses less digits than its factorization.

1670258655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 1670258655 is about 40868.7980616020. The cubic root of 1670258655 is about 1186.4822449466.

It can be divided in two parts, 16702 and 58655, that added together give a palindrome (75357).

The spelling of 1670258655 in words is "one billion, six hundred seventy million, two hundred fifty-eight thousand, six hundred fifty-five".