10661950 has 48 divisors (see below), whose sum is σ = 21873600. Its totient is φ = 3841920.

The previous prime is 10661939. The next prime is 10661971. The reversal of 10661950 is 5916601.

It is a super-2 number, since 2×10661950² = 227354355605000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30376 + ... + 30724.

It is an arithmetic number, because the mean of its divisors is an integer number (455700).

Almost surely, 2^10661950 is an apocalyptic number.

10661950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10661950 is an abundant number, since it is smaller than the sum of its proper divisors (11211650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10661950 is a wasteful number, since it uses less digits than its factorization.

10661950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 10661950 is about 3265.2641547048. The cubic root of 10661950 is about 220.0960324548.

It can be divided in two parts, 10661 and 950, that added together give a palindrome (11611).

The spelling of 10661950 in words is "ten million, six hundred sixty-one thousand, nine hundred fifty".