61611062543 has 8 divisors (see below), whose sum is σ = 61664296512. Its totient is φ = 61557856416.

The previous prime is 61611062509. The next prime is 61611062551. The reversal of 61611062543 is 34526011616.

61611062543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61611062543 - 2³⁰ = 60537320719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61611062503) 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, 7221146 + ... + 7229672.

It is an arithmetic number, because the mean of its divisors is an integer number (7708037064).

Almost surely, 2^61611062543 is an apocalyptic number.

61611062543 is a deficient number, since it is larger than the sum of its proper divisors (53233969).

61611062543 is a wasteful number, since it uses less digits than its factorization.

61611062543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13921.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 61611062543 in words is "sixty-one billion, six hundred eleven million, sixty-two thousand, five hundred forty-three".