61622136337133 has 4 divisors (see below), whose sum is σ = 61622242329180. Its totient is φ = 61622030345088.

The previous prime is 61622136337081. The next prime is 61622136337147. The reversal of 61622136337133 is 33173363122616.

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 50805917741929 + 10816218595204 = 7127827^2 + 3288802^2 .

It is a cyclic number.

It is not a de Polignac number, because 61622136337133 - 2²² = 61622132142829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622136334133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52119110 + ... + 53288327.

It is an arithmetic number, because the mean of its divisors is an integer number (15405560582295).

Almost surely, 2^{61622136337133} is an apocalyptic number.

It is an amenable number.

61622136337133 is a deficient number, since it is larger than the sum of its proper divisors (105992047).

61622136337133 is a wasteful number, since it uses less digits than its factorization.

61622136337133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105992046.

The product of its digits is 1469664, while the sum is 47.

Adding to 61622136337133 its reverse (33173363122616), we get a palindrome (94795499459749).

The spelling of 61622136337133 in words is "sixty-one trillion, six hundred twenty-two billion, one hundred thirty-six million, three hundred thirty-seven thousand, one hundred thirty-three".