1466509961 has 16 divisors (see below), whose sum is σ = 1742653440. Its totient is φ = 1207469760.

The previous prime is 1466509951. The next prime is 1466509973. The reversal of 1466509961 is 1699056641.

It is a happy number.

It is not a de Polignac number, because 1466509961 - 2⁶ = 1466509897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1466509951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21656 + ... + 58326.

It is an arithmetic number, because the mean of its divisors is an integer number (108915840).

Almost surely, 2^1466509961 is an apocalyptic number.

It is an amenable number.

1466509961 is a deficient number, since it is larger than the sum of its proper divisors (276143479).

1466509961 is a wasteful number, since it uses less digits than its factorization.

1466509961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36904.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 1466509961 is about 38295.0383339670. The cubic root of 1466509961 is about 1136.1308144772.

The spelling of 1466509961 in words is "one billion, four hundred sixty-six million, five hundred nine thousand, nine hundred sixty-one".