611455680870203 has 96 divisors (see below), whose sum is σ = 765795488451840. Its totient is φ = 483498310256640.

The previous prime is 611455680870193. The next prime is 611455680870211. The reversal of 611455680870203 is 302078086554116.

It is not a de Polignac number, because 611455680870203 - 2¹⁶ = 611455680804667 is a prime.

It is a super-2 number, since 2×611455680870203² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611455680870803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 185604776 + ... + 188870442.

It is an arithmetic number, because the mean of its divisors is an integer number (7977036338040).

Almost surely, 2^{611455680870203} is an apocalyptic number.

611455680870203 is a deficient number, since it is larger than the sum of its proper divisors (154339807581637).

611455680870203 is a wasteful number, since it uses less digits than its factorization.

611455680870203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265837 (or 3265820 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 611455680870203 in words is "six hundred eleven trillion, four hundred fifty-five billion, six hundred eighty million, eight hundred seventy thousand, two hundred three".