14215661329690 has 16 divisors (see below), whose sum is σ = 25616033925120. Its totient is φ = 5680077080400.

The previous prime is 14215661329669. The next prime is 14215661329711. The reversal of 14215661329690 is 9692316651241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14215661329669) and next prime (14215661329711).

It is a super-2 number, since 2×14215661329690² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773421786 + ... + 773440165.

It is an arithmetic number, because the mean of its divisors is an integer number (1601002120320).

Almost surely, 2^{14215661329690} is an apocalyptic number.

14215661329690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14215661329690 is a deficient number, since it is larger than the sum of its proper divisors (11400372595430).

14215661329690 is a wasteful number, since it uses less digits than its factorization.

14215661329690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546862877.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 14215661329690 in words is "fourteen trillion, two hundred fifteen billion, six hundred sixty-one million, three hundred twenty-nine thousand, six hundred ninety".