1000500500061 has 24 divisors (see below), whose sum is σ = 1484609378616. Its totient is φ = 648888514560.

The previous prime is 1000500500059. The next prime is 1000500500063. The reversal of 1000500500061 is 1600050050001.

1000500500061 is a `hidden beast` number, since 100 + 0 + 5 + 0 + 0 + 500 + 0 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (1000500500059) and next prime (1000500500063).

It can be written as a sum of positive squares in 4 ways, for example, as 93272824836 + 907227675225 = 305406^2 + 952485^2 .

It is not a de Polignac number, because 1000500500061 - 2¹ = 1000500500059 is a prime.

It is a super-2 number, since 2×1000500500061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000500500063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3710230 + ... + 3970743.

It is an arithmetic number, because the mean of its divisors is an integer number (61858724109).

Almost surely, 2^{1000500500061} is an apocalyptic number.

It is an amenable number.

1000500500061 is a deficient number, since it is larger than the sum of its proper divisors (484108878555).

1000500500061 is a wasteful number, since it uses less digits than its factorization.

1000500500061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681373 (or 7681370 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 1000500500061 its reverse (1600050050001), we get a palindrome (2600550550062).

The spelling of 1000500500061 in words is "one trillion, five hundred million, five hundred thousand, sixty-one".