61149252913111 has 8 divisors (see below), whose sum is σ = 70219237795200. Its totient is φ = 52664428346040.

The previous prime is 61149252913109. The next prime is 61149252913121. The reversal of 61149252913111 is 11131925294116.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61149252913111 - 2¹ = 61149252913109 is a prime.

It is a super-2 number, since 2×61149252913111² (a number of 28 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 (61149252913121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146290078531 + ... + 146290078948.

It is an arithmetic number, because the mean of its divisors is an integer number (8777404724400).

Almost surely, 2^{61149252913111} is an apocalyptic number.

61149252913111 is a deficient number, since it is larger than the sum of its proper divisors (9069984882089).

61149252913111 is a wasteful number, since it uses less digits than its factorization.

61149252913111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292580157509.

The product of its digits is 116640, while the sum is 46.

The spelling of 61149252913111 in words is "sixty-one trillion, one hundred forty-nine billion, two hundred fifty-two million, nine hundred thirteen thousand, one hundred eleven".