1620546632 has 16 divisors (see below), whose sum is σ = 3198447600. Its totient is φ = 767627280.

The previous prime is 1620546589. The next prime is 1620546643. The reversal of 1620546632 is 2366450261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1620546592 and 1620546601.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330594 + ... + 5330897.

It is an arithmetic number, because the mean of its divisors is an integer number (199902975).

Almost surely, 2^1620546632 is an apocalyptic number.

It is an amenable number.

1620546632 is a deficient number, since it is larger than the sum of its proper divisors (1577900968).

1620546632 is a wasteful number, since it uses less digits than its factorization.

1620546632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10661516 (or 10661512 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1620546632 is about 40256.0136128753. The cubic root of 1620546632 is about 1174.5923757628.

Adding to 1620546632 its reverse (2366450261), we get a palindrome (3986996893).

The spelling of 1620546632 in words is "one billion, six hundred twenty million, five hundred forty-six thousand, six hundred thirty-two".