61005545510542 has 8 divisors (see below), whose sum is σ = 92761856872416. Its totient is φ = 30084926553072.

The previous prime is 61005545510537. The next prime is 61005545510543. The reversal of 61005545510542 is 24501554550016.

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

It is a super-2 number, since 2×61005545510542² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005545510543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 208923100918 + ... + 208923101209.

It is an arithmetic number, because the mean of its divisors is an integer number (11595232109052).

Almost surely, 2^{61005545510542} is an apocalyptic number.

61005545510542 is a deficient number, since it is larger than the sum of its proper divisors (31756311361874).

61005545510542 is a wasteful number, since it uses less digits than its factorization.

61005545510542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417846202202.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 61005545510542 in words is "sixty-one trillion, five billion, five hundred forty-five million, five hundred ten thousand, five hundred forty-two".