1001620711 has 16 divisors (see below), whose sum is σ = 1257928000. Its totient is φ = 792487584.

The previous prime is 1001620709. The next prime is 1001620723. The reversal of 1001620711 is 1170261001.

It is not a de Polignac number, because 1001620711 - 2¹ = 1001620709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001620751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107856 + ... + 116773.

It is an arithmetic number, because the mean of its divisors is an integer number (78620500).

Almost surely, 2^1001620711 is an apocalyptic number.

1001620711 is a deficient number, since it is larger than the sum of its proper divisors (256307289).

1001620711 is an equidigital number, since it uses as much as digits as its factorization.

1001620711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224663 (or 224649 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1001620711 is about 31648.3919180738. The cubic root of 1001620711 is about 1000.5399454065.

Adding to 1001620711 its reverse (1170261001), we get a palindrome (2171881712).

The spelling of 1001620711 in words is "one billion, one million, six hundred twenty thousand, seven hundred eleven".