6541551541402 has 8 divisors (see below), whose sum is σ = 10040520970656. Its totient is φ = 3194711217852.

The previous prime is 6541551541267. The next prime is 6541551541409. The reversal of 6541551541402 is 2041451551456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (6541551541409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38032276318 + ... + 38032276489.

It is an arithmetic number, because the mean of its divisors is an integer number (1255065121332).

Almost surely, 2^{6541551541402} is an apocalyptic number.

6541551541402 is a deficient number, since it is larger than the sum of its proper divisors (3498969429254).

6541551541402 is a wasteful number, since it uses less digits than its factorization.

6541551541402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76064552852.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 6541551541402 in words is "six trillion, five hundred forty-one billion, five hundred fifty-one million, five hundred forty-one thousand, four hundred two".