4661215501 has 4 divisors (see below), whose sum is σ = 4821947100. Its totient is φ = 4500483904.

The previous prime is 4661215483. The next prime is 4661215511. The reversal of 4661215501 is 1055121664.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1237210276 + 3424005225 = 35174^2 + 58515^2 .

It is a cyclic number.

It is not a de Polignac number, because 4661215501 - 2⁵ = 4661215469 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 (4661215511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80365756 + ... + 80365813.

It is an arithmetic number, because the mean of its divisors is an integer number (1205486775).

Almost surely, 2^4661215501 is an apocalyptic number.

It is an amenable number.

4661215501 is a deficient number, since it is larger than the sum of its proper divisors (160731599).

4661215501 is a wasteful number, since it uses less digits than its factorization.

4661215501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160731598.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 4661215501 is about 68273.0950008860. The cubic root of 4661215501 is about 1670.4483839099.

The spelling of 4661215501 in words is "four billion, six hundred sixty-one million, two hundred fifteen thousand, five hundred one".