21106046551373 has 8 divisors (see below), whose sum is σ = 24334657971648. Its totient is φ = 17930800609344.

The previous prime is 21106046551283. The next prime is 21106046551391. The reversal of 21106046551373 is 37315564060112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21106046551373 - 2¹⁶ = 21106046485837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21106046550373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13341368711 + ... + 13341370292.

It is an arithmetic number, because the mean of its divisors is an integer number (3041832246456).

Almost surely, 2^{21106046551373} is an apocalyptic number.

It is an amenable number.

21106046551373 is a deficient number, since it is larger than the sum of its proper divisors (3228611420275).

21106046551373 is a wasteful number, since it uses less digits than its factorization.

21106046551373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26682739123.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 21106046551373 in words is "twenty-one trillion, one hundred six billion, forty-six million, five hundred fifty-one thousand, three hundred seventy-three".