1661210034 has 32 divisors (see below), whose sum is σ = 3634606080. Its totient is φ = 501987600.

The previous prime is 1661210027. The next prime is 1661210093. The reversal of 1661210034 is 4300121661.

It is a junction number, because it is equal to n+sod(n) for n = 1661209986 and 1661210013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11362 + ... + 58749.

It is an arithmetic number, because the mean of its divisors is an integer number (113581440).

Almost surely, 2^1661210034 is an apocalyptic number.

1661210034 is an abundant number, since it is smaller than the sum of its proper divisors (1973396046).

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

1661210034 is a wasteful number, since it uses less digits than its factorization.

1661210034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70486.

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

The square root of 1661210034 is about 40757.9444280499. The cubic root of 1661210034 is about 1184.3357761638.

Adding to 1661210034 its reverse (4300121661), we get a palindrome (5961331695).

The spelling of 1661210034 in words is "one billion, six hundred sixty-one million, two hundred ten thousand, thirty-four".