21671446960042 has 32 divisors (see below), whose sum is σ = 35742437498880. Its totient is φ = 9772864199280.

The previous prime is 21671446960021. The next prime is 21671446960043. The reversal of 21671446960042 is 24006964417612.

It is a super-2 number, since 2×21671446960042² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21671446960043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190345809 + ... + 190459627.

It is an arithmetic number, because the mean of its divisors is an integer number (1116951171840).

Almost surely, 2^{21671446960042} is an apocalyptic number.

21671446960042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21671446960042 is a deficient number, since it is larger than the sum of its proper divisors (14070990538838).

21671446960042 is a wasteful number, since it uses less digits than its factorization.

21671446960042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182106.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 21671446960042 in words is "twenty-one trillion, six hundred seventy-one billion, four hundred forty-six million, nine hundred sixty thousand, forty-two".