20377543033802 has 16 divisors (see below), whose sum is σ = 31242536039880. Its totient is φ = 9964592731392.

The previous prime is 20377543033801. The next prime is 20377543033811. The reversal of 20377543033802 is 20833034577302.

It can be written as a sum of positive squares in 4 ways, for example, as 6703381849921 + 13674161183881 = 2589089^2 + 3697859^2 .

It is a super-3 number, since 3×20377543033802³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20377543033801) 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, 307061027 + ... + 307127382.

Almost surely, 2^{20377543033802} is an apocalyptic number.

20377543033802 is a deficient number, since it is larger than the sum of its proper divisors (10864993006078).

20377543033802 is a wasteful number, since it uses less digits than its factorization.

20377543033802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614188777.

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 20377543033802 in words is "twenty trillion, three hundred seventy-seven billion, five hundred forty-three million, thirty-three thousand, eight hundred two".