73245665253666 has 32 divisors (see below), whose sum is σ = 151636707149760. Its totient is φ = 23558702882624.

The previous prime is 73245665253659. The next prime is 73245665253701. The reversal of 73245665253666 is 66635256654237.

It is a junction number, because it is equal to n+sod(n) for n = 73245665253597 and 73245665253606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130206660 + ... + 130767983.

It is an arithmetic number, because the mean of its divisors is an integer number (4738647098430).

Almost surely, 2^{73245665253666} is an apocalyptic number.

73245665253666 is an abundant number, since it is smaller than the sum of its proper divisors (78391041896094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73245665253666 is a wasteful number, since it uses less digits than its factorization.

73245665253666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260976290.

The product of its digits is 979776000, while the sum is 66.

The spelling of 73245665253666 in words is "seventy-three trillion, two hundred forty-five billion, six hundred sixty-five million, two hundred fifty-three thousand, six hundred sixty-six".