21145526614 has 8 divisors (see below), whose sum is σ = 31931164800. Its totient is φ = 10501805016.

The previous prime is 21145526579. The next prime is 21145526621. The reversal of 21145526614 is 41662554112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35478774 + ... + 35479369.

It is an arithmetic number, because the mean of its divisors is an integer number (3991395600).

Almost surely, 2^21145526614 is an apocalyptic number.

21145526614 is a deficient number, since it is larger than the sum of its proper divisors (10785638186).

21145526614 is a wasteful number, since it uses less digits than its factorization.

21145526614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70958294.

The product of its digits is 57600, while the sum is 37.

The spelling of 21145526614 in words is "twenty-one billion, one hundred forty-five million, five hundred twenty-six thousand, six hundred fourteen".