1206020551542 has 32 divisors (see below), whose sum is σ = 2520374717952. Its totient is φ = 383999335104.

The previous prime is 1206020551531. The next prime is 1206020551543. The reversal of 1206020551542 is 2451550206021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206020551543) 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, 5910183 + ... + 6110834.

It is an arithmetic number, because the mean of its divisors is an integer number (78761709936).

Almost surely, 2^{1206020551542} is an apocalyptic number.

1206020551542 is an abundant number, since it is smaller than the sum of its proper divisors (1314354166410).

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

1206020551542 is a wasteful number, since it uses less digits than its factorization.

1206020551542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021772.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1206020551542 its reverse (2451550206021), we get a palindrome (3657570757563).

The spelling of 1206020551542 in words is "one trillion, two hundred six billion, twenty million, five hundred fifty-one thousand, five hundred forty-two".