61660122 has 32 divisors (see below), whose sum is σ = 131544000. Its totient is φ = 19200768.

The previous prime is 61660103. The next prime is 61660127. The reversal of 61660122 is 22106616.

It is a junction number, because it is equal to n+sod(n) for n = 61660092 and 61660101.

It is not an unprimeable number, because it can be changed into a prime (61660127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12004 + ... + 16352.

It is an arithmetic number, because the mean of its divisors is an integer number (4110750).

Almost surely, 2^61660122 is an apocalyptic number.

61660122 is an abundant number, since it is smaller than the sum of its proper divisors (69883878).

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

61660122 is a wasteful number, since it uses less digits than its factorization.

61660122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 61660122 is about 7852.3959400937. The cubic root of 61660122 is about 395.0646094175.

Adding to 61660122 its reverse (22106616), we get a palindrome (83766738).

The spelling of 61660122 in words is "sixty-one million, six hundred sixty thousand, one hundred twenty-two".