73664476550 has 192 divisors, whose sum is σ = 164419476480. Its totient is φ = 24031488000.

The previous prime is 73664476537. The next prime is 73664476601. The reversal of 73664476550 is 5567446637.

It is a junction number, because it is equal to n+sod(n) for n = 73664476492 and 73664476501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141390290 + ... + 141390810.

It is an arithmetic number, because the mean of its divisors is an integer number (856351440).

Almost surely, 2^73664476550 is an apocalyptic number.

73664476550 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73664476550 is an abundant number, since it is smaller than the sum of its proper divisors (90754999930).

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

73664476550 is a wasteful number, since it uses less digits than its factorization.

73664476550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 53.

The spelling of 73664476550 in words is "seventy-three billion, six hundred sixty-four million, four hundred seventy-six thousand, five hundred fifty".