1101660461 has 4 divisors (see below), whose sum is σ = 1201811424. Its totient is φ = 1001509500.

The previous prime is 1101660421. The next prime is 1101660467. The reversal of 1101660461 is 1640661011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1640661011 = 11 ⋅149151001.

It is a cyclic number.

It is not a de Polignac number, because 1101660461 - 2⁶ = 1101660397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101660461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101660467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50075465 + ... + 50075486.

It is an arithmetic number, because the mean of its divisors is an integer number (300452856).

Almost surely, 2^1101660461 is an apocalyptic number.

1101660461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101660461 is a deficient number, since it is larger than the sum of its proper divisors (100150963).

1101660461 is a wasteful number, since it uses less digits than its factorization.

1101660461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100150962.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1101660461 is about 33191.2708554523. The cubic root of 1101660461 is about 1032.7992667083.

The spelling of 1101660461 in words is "one billion, one hundred one million, six hundred sixty thousand, four hundred sixty-one".