21357611156006 has 8 divisors (see below), whose sum is σ = 32036460874680. Its totient is φ = 10678790864448.

The previous prime is 21357611155999. The next prime is 21357611156059. The reversal of 21357611156006 is 60065111675312.

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

It is a super-2 number, since 2×21357611156006² (a number of 27 digits) contains 22 as substring.

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, 5442731 + ... + 8505206.

It is an arithmetic number, because the mean of its divisors is an integer number (4004557609335).

Almost surely, 2^{21357611156006} is an apocalyptic number.

21357611156006 is a deficient number, since it is larger than the sum of its proper divisors (10678849718674).

21357611156006 is a wasteful number, since it uses less digits than its factorization.

21357611156006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14713558.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 21357611156006 in words is "twenty-one trillion, three hundred fifty-seven billion, six hundred eleven million, one hundred fifty-six thousand, six".