21702033074553 has 16 divisors (see below), whose sum is σ = 31360377053376. Its totient is φ = 13270032959040.

The previous prime is 21702033074551. The next prime is 21702033074567. The reversal of 21702033074553 is 35547033020712.

It is not a de Polignac number, because 21702033074553 - 2¹ = 21702033074551 is a prime.

It is a super-2 number, since 2×21702033074553² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21702033074551) 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, 1772167083 + ... + 1772179328.

It is an arithmetic number, because the mean of its divisors is an integer number (1960023565836).

Almost surely, 2^{21702033074553} is an apocalyptic number.

It is an amenable number.

21702033074553 is a deficient number, since it is larger than the sum of its proper divisors (9658343978823).

21702033074553 is a wasteful number, since it uses less digits than its factorization.

21702033074553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544346584.

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 21702033074553 in words is "twenty-one trillion, seven hundred two billion, thirty-three million, seventy-four thousand, five hundred fifty-three".