73655502020 has 12 divisors (see below), whose sum is σ = 154676554284. Its totient is φ = 29462200800.

The previous prime is 73655502007. The next prime is 73655502023. The reversal of 73655502020 is 2020555637.

It can be written as a sum of positive squares in 2 ways, for example, as 12551617156 + 61103884864 = 112034^2 + 247192^2 .

It is not an unprimeable number, because it can be changed into a prime (73655502023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841387531 + ... + 1841387570.

It is an arithmetic number, because the mean of its divisors is an integer number (12889712857).

Almost surely, 2^73655502020 is an apocalyptic number.

It is an amenable number.

73655502020 is an abundant number, since it is smaller than the sum of its proper divisors (81021052264).

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

73655502020 is a wasteful number, since it uses less digits than its factorization.

73655502020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682775110 (or 3682775108 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 73655502020 in words is "seventy-three billion, six hundred fifty-five million, five hundred two thousand, twenty".