61455066 has 16 divisors (see below), whose sum is σ = 124128288. Its totient is φ = 20282000.

The previous prime is 61455059. The next prime is 61455067. The reversal of 61455066 is 66055416.

It is not an unprimeable number, because it can be changed into a prime (61455067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50100 + ... + 51311.

It is an arithmetic number, because the mean of its divisors is an integer number (7758018).

Almost surely, 2^61455066 is an apocalyptic number.

61455066 is an abundant number, since it is smaller than the sum of its proper divisors (62673222).

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

61455066 is a wasteful number, since it uses less digits than its factorization.

61455066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101517.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 61455066 is about 7839.3281599892. The cubic root of 61455066 is about 394.6261826867.

It can be divided in two parts, 6145 and 5066, that added together give a palindrome (11211).

The spelling of 61455066 in words is "sixty-one million, four hundred fifty-five thousand, sixty-six".