2101506650 has 24 divisors (see below), whose sum is σ = 3958288320. Its totient is φ = 829960560.

The previous prime is 2101506637. The next prime is 2101506653. The reversal of 2101506650 is 566051012.

It is not an unprimeable number, because it can be changed into a prime (2101506653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262064 + ... + 269963.

It is an arithmetic number, because the mean of its divisors is an integer number (164928680).

Almost surely, 2^2101506650 is an apocalyptic number.

2101506650 is a deficient number, since it is larger than the sum of its proper divisors (1856781670).

2101506650 is a wasteful number, since it uses less digits than its factorization.

2101506650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532118 (or 532113 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2101506650 is about 45842.1929013000. The cubic root of 2101506650 is about 1280.8853433000.

Adding to 2101506650 its reverse (566051012), we get a palindrome (2667557662).

The spelling of 2101506650 in words is "two billion, one hundred one million, five hundred six thousand, six hundred fifty".