66342511400 has 48 divisors (see below), whose sum is σ = 168268739040. Its totient is φ = 24124548800.

The previous prime is 66342511331. The next prime is 66342511421. The reversal of 66342511400 is 411524366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15075644 + ... + 15080043.

It is an arithmetic number, because the mean of its divisors is an integer number (3505598730).

Almost surely, 2^66342511400 is an apocalyptic number.

It is an amenable number.

66342511400 is an abundant number, since it is smaller than the sum of its proper divisors (101926227640).

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

66342511400 is a wasteful number, since it uses less digits than its factorization.

66342511400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30155714 (or 30155705 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 66342511400 in words is "sixty-six billion, three hundred forty-two million, five hundred eleven thousand, four hundred".