73666545743 has 8 divisors (see below), whose sum is σ = 84227395488. Its totient is φ = 63114960384.

The previous prime is 73666545737. The next prime is 73666545767. The reversal of 73666545743 is 34754566637.

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

It is not a de Polignac number, because 73666545743 - 2⁴ = 73666545727 is a prime.

It is a super-2 number, since 2×73666545743² (a number of 23 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 (73665545743) 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, 2299046 + ... + 2330867.

It is an arithmetic number, because the mean of its divisors is an integer number (10528424436).

Almost surely, 2^73666545743 is an apocalyptic number.

73666545743 is a deficient number, since it is larger than the sum of its proper divisors (10560849745).

73666545743 is a wasteful number, since it uses less digits than its factorization.

73666545743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632193.

The product of its digits is 38102400, while the sum is 56.

The spelling of 73666545743 in words is "seventy-three billion, six hundred sixty-six million, five hundred forty-five thousand, seven hundred forty-three".