1620201740043 has 16 divisors (see below), whose sum is σ = 2217000571136. Its totient is φ = 1052112529440.

The previous prime is 1620201740039. The next prime is 1620201740099. The reversal of 1620201740043 is 3400471020261.

It is not a de Polignac number, because 1620201740043 - 2² = 1620201740039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1620201760043) 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, 42959605 + ... + 42997302.

It is an arithmetic number, because the mean of its divisors is an integer number (138562535696).

Almost surely, 2^{1620201740043} is an apocalyptic number.

1620201740043 is a deficient number, since it is larger than the sum of its proper divisors (596798831093).

1620201740043 is a wasteful number, since it uses less digits than its factorization.

1620201740043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85957074.

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 1620201740043 in words is "one trillion, six hundred twenty billion, two hundred one million, seven hundred forty thousand, forty-three".