20620630534621 has 8 divisors (see below), whose sum is σ = 22227262367744. Its totient is φ = 19016917199280.

The previous prime is 20620630534573. The next prime is 20620630534649. The reversal of 20620630534621 is 12643503602602.

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

It is not a de Polignac number, because 20620630534621 - 2¹⁵ = 20620630501853 is a prime.

It is a super-2 number, since 2×20620630534621² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620630534421) 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, 729609765 + ... + 729638026.

It is an arithmetic number, because the mean of its divisors is an integer number (2778407795968).

Almost surely, 2^{20620630534621} is an apocalyptic number.

It is an amenable number.

20620630534621 is a deficient number, since it is larger than the sum of its proper divisors (1606631833123).

20620630534621 is a wasteful number, since it uses less digits than its factorization.

20620630534621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459248891.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 20620630534621 in words is "twenty trillion, six hundred twenty billion, six hundred thirty million, five hundred thirty-four thousand, six hundred twenty-one".