66503350 has 24 divisors (see below), whose sum is σ = 129076560. Its totient is φ = 25444320.

The previous prime is 66503347. The next prime is 66503369. The reversal of 66503350 is 5330566.

It is a super-2 number, since 2×66503350² = 8845391122445000, which 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 11 ways as a sum of consecutive naturals, for example, 27765 + ... + 30064.

It is an arithmetic number, because the mean of its divisors is an integer number (5378190).

Almost surely, 2^66503350 is an apocalyptic number.

66503350 is a deficient number, since it is larger than the sum of its proper divisors (62573210).

66503350 is a wasteful number, since it uses less digits than its factorization.

66503350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57864 (or 57859 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 66503350 is about 8154.9586142420. The cubic root of 66503350 is about 405.1487539735.

It can be divided in two parts, 6650 and 3350, that added together give a 4-th power (10000 = 10⁴).

The spelling of 66503350 in words is "sixty-six million, five hundred three thousand, three hundred fifty".