1651541320 has 64 divisors (see below), whose sum is σ = 4365627840. Its totient is φ = 554361600.

The previous prime is 1651541299. The next prime is 1651541341. The reversal of 1651541320 is 231451561.

It is an interprime number because it is at equal distance from previous prime (1651541299) and next prime (1651541341).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 138646 + ... + 150085.

It is an arithmetic number, because the mean of its divisors is an integer number (68212935).

Almost surely, 2^1651541320 is an apocalyptic number.

1651541320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1651541320 is an abundant number, since it is smaller than the sum of its proper divisors (2714086520).

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

1651541320 is a wasteful number, since it uses less digits than its factorization.

1651541320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288766 (or 288762 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1651541320 is about 40639.1599322624. The cubic root of 1651541320 is about 1182.0335804127.

Adding to 1651541320 its reverse (231451561), we get a palindrome (1882992881).

The spelling of 1651541320 in words is "one billion, six hundred fifty-one million, five hundred forty-one thousand, three hundred twenty".