1661498346 has 16 divisors (see below), whose sum is σ = 3323939904. Its totient is φ = 553675584.

The previous prime is 1661498327. The next prime is 1661498347. The reversal of 1661498346 is 6438941661.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1661498295 and 1661498304.

It is not an unprimeable number, because it can be changed into a prime (1661498347) 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, 15270 + ... + 59633.

It is an arithmetic number, because the mean of its divisors is an integer number (207746244).

Almost surely, 2^1661498346 is an apocalyptic number.

1661498346 is an abundant number, since it is smaller than the sum of its proper divisors (1662441558).

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

1661498346 is a wasteful number, since it uses less digits than its factorization.

1661498346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78605.

The product of its digits is 746496, while the sum is 48.

The square root of 1661498346 is about 40761.4811556204. The cubic root of 1661498346 is about 1184.4042881635.

It can be divided in two parts, 16614 and 98346, that added together give a triangular number (114960 = T₄₇₉).

The spelling of 1661498346 in words is "one billion, six hundred sixty-one million, four hundred ninety-eight thousand, three hundred forty-six".