61534122143516 has 72 divisors (see below), whose sum is σ = 119301731223360. Its totient is φ = 27749299691520.

The previous prime is 61534122143471. The next prime is 61534122143531.

61534122143516 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×61534122143516² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33384740 + ... + 35179668.

Almost surely, 2^{61534122143516} is an apocalyptic number.

It is an amenable number.

61534122143516 is a deficient number, since it is larger than the sum of its proper divisors (57767609079844).

61534122143516 is a wasteful number, since it uses less digits than its factorization.

61534122143516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795515 (or 1795502 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

It can be divided in two parts, 6153412 and 2143516, that added together give a palindrome (8296928).

The spelling of 61534122143516 in words is "sixty-one trillion, five hundred thirty-four billion, one hundred twenty-two million, one hundred forty-three thousand, five hundred sixteen".