66424340610454 has 16 divisors (see below), whose sum is σ = 104880832459200. Its totient is φ = 31464072945864.

The previous prime is 66424340610377. The next prime is 66424340610479. The reversal of 66424340610454 is 45401604342466.

It is a super-2 number, since 2×66424340610454² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66424340610398 and 66424340610407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12418609 + ... + 16943155.

It is an arithmetic number, because the mean of its divisors is an integer number (6555052028700).

Almost surely, 2^{66424340610454} is an apocalyptic number.

66424340610454 is a deficient number, since it is larger than the sum of its proper divisors (38456491848746).

66424340610454 is a wasteful number, since it uses less digits than its factorization.

66424340610454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910907.

The product of its (nonzero) digits is 6635520, while the sum is 49.

The spelling of 66424340610454 in words is "sixty-six trillion, four hundred twenty-four billion, three hundred forty million, six hundred ten thousand, four hundred fifty-four".