2150605206021 has 8 divisors (see below), whose sum is σ = 2867485913824. Its totient is φ = 1433730651120.

The previous prime is 2150605205993. The next prime is 2150605206023. The reversal of 2150605206021 is 1206025060512.

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

It is a de Polignac number, because none of the positive numbers 2^k-2150605206021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2150605206021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150605206023) 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, 649270 + ... + 2173191.

It is an arithmetic number, because the mean of its divisors is an integer number (358435739228).

Almost surely, 2^{2150605206021} is an apocalyptic number.

It is an amenable number.

2150605206021 is a deficient number, since it is larger than the sum of its proper divisors (716880707803).

2150605206021 is a wasteful number, since it uses less digits than its factorization.

2150605206021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076451.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 2150605206021 in words is "two trillion, one hundred fifty billion, six hundred five million, two hundred six thousand, twenty-one".