66947450462 has 4 divisors (see below), whose sum is σ = 100421175696. Its totient is φ = 33473725230.

The previous prime is 66947450411. The next prime is 66947450473. The reversal of 66947450462 is 26405474966.

66947450462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×66947450462³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16736862614 + ... + 16736862617.

It is an arithmetic number, because the mean of its divisors is an integer number (25105293924).

Almost surely, 2^66947450462 is an apocalyptic number.

66947450462 is a deficient number, since it is larger than the sum of its proper divisors (33473725234).

66947450462 is a wasteful number, since it uses less digits than its factorization.

66947450462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33473725233.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 66947450462 in words is "sixty-six billion, nine hundred forty-seven million, four hundred fifty thousand, four hundred sixty-two".