61150663 has 4 divisors (see below), whose sum is σ = 69886480. Its totient is φ = 52414848.

The previous prime is 61150637. The next prime is 61150681. The reversal of 61150663 is 36605116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61150663 - 2¹⁷ = 61019591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61150363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367898 + ... + 4367911.

It is an arithmetic number, because the mean of its divisors is an integer number (17471620).

Almost surely, 2^61150663 is an apocalyptic number.

61150663 is a deficient number, since it is larger than the sum of its proper divisors (8735817).

61150663 is an equidigital number, since it uses as much as digits as its factorization.

61150663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735816.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 61150663 is about 7819.8889378303. Note that the first 3 decimals coincide. The cubic root of 61150663 is about 393.9735417312.

Adding to 61150663 its reverse (36605116), we get a palindrome (97755779).

The spelling of 61150663 in words is "sixty-one million, one hundred fifty thousand, six hundred sixty-three".