61145564455342 has 8 divisors (see below), whose sum is σ = 91718410797000. Its totient is φ = 30572760856344.

The previous prime is 61145564455307. The next prime is 61145564455357. The reversal of 61145564455342 is 24355446554116.

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

It is a super-2 number, since 2×61145564455342² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6831217 + ... + 12998332.

It is an arithmetic number, because the mean of its divisors is an integer number (11464801349625).

Almost surely, 2^{61145564455342} is an apocalyptic number.

61145564455342 is a deficient number, since it is larger than the sum of its proper divisors (30572846341658).

61145564455342 is a wasteful number, since it uses less digits than its factorization.

61145564455342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21371330.

The product of its digits is 34560000, while the sum is 55.

The spelling of 61145564455342 in words is "sixty-one trillion, one hundred forty-five billion, five hundred sixty-four million, four hundred fifty-five thousand, three hundred forty-two".