1061015650 has 12 divisors (see below), whose sum is σ = 1973489202. Its totient is φ = 424406240.

The previous prime is 1061015633. The next prime is 1061015687. The reversal of 1061015650 is 565101601.

It can be written as a sum of positive squares in 3 ways, for example, as 1005080209 + 55935441 = 31703^2 + 7479^2 .

It is a super-2 number, since 2×1061015650² = 2251508419089845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610107 + ... + 10610206.

Almost surely, 2^1061015650 is an apocalyptic number.

1061015650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1061015650 is a deficient number, since it is larger than the sum of its proper divisors (912473552).

1061015650 is a wasteful number, since it uses less digits than its factorization.

1061015650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21220325 (or 21220320 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1061015650 is about 32573.2351785941. The cubic root of 1061015650 is about 1019.9383693379.

The spelling of 1061015650 in words is "one billion, sixty-one million, fifteen thousand, six hundred fifty".