655752474101 has 4 divisors (see below), whose sum is σ = 655757657100. Its totient is φ = 655747291104.

The previous prime is 655752474089. The next prime is 655752474121. The reversal of 655752474101 is 101474257556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 421719061201 + 234033412900 = 649399^2 + 483770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655752474101 is a prime.

It is a super-2 number, since 2×655752474101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655752474121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2396846 + ... + 2656383.

It is an arithmetic number, because the mean of its divisors is an integer number (163939414275).

Almost surely, 2^655752474101 is an apocalyptic number.

It is an amenable number.

655752474101 is a deficient number, since it is larger than the sum of its proper divisors (5182999).

655752474101 is a wasteful number, since it uses less digits than its factorization.

655752474101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182998.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 655752474101 in words is "six hundred fifty-five billion, seven hundred fifty-two million, four hundred seventy-four thousand, one hundred one".