66362461 has 4 divisors (see below), whose sum is σ = 72395424. Its totient is φ = 60329500.

The previous prime is 66362447. The next prime is 66362467. The reversal of 66362461 is 16426366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66362461 - 2¹³ = 66354269 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 (66362467) 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, 3016465 + ... + 3016486.

It is an arithmetic number, because the mean of its divisors is an integer number (18098856).

Almost surely, 2^66362461 is an apocalyptic number.

It is an amenable number.

66362461 is a deficient number, since it is larger than the sum of its proper divisors (6032963).

66362461 is a wasteful number, since it uses less digits than its factorization.

66362461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032962.

The product of its digits is 31104, while the sum is 34.

The square root of 66362461 is about 8146.3157930441. The cubic root of 66362461 is about 404.8624457926.

The spelling of 66362461 in words is "sixty-six million, three hundred sixty-two thousand, four hundred sixty-one".